The Fluidmaster 400A Fill Valve and Flapper Kit is the best toilet replacement kit for most homeowners in 2026. It pairs an adjustable fill valve with a solid-frame 2-inch flapper under a 5-year limited warranty, and it carries the largest review base of any kit we compared. That combination of fit range, warranty length and thousands of verified installs is why it takes the top slot below.
Here is the thing most homeowners learn the hard way. A toilet tank is not one part, it is a small system: a fill valve that refills the tank, a flush valve that opens at the bottom, a flapper that seals that opening, and a refill tube that tops the bowl back up. Those parts live on the same wear curve, so swapping only the flapper usually buys you another six months of the same complaint.
A toilet replacement kit puts the wear parts in one box so you rebuild the tank in a single trip instead of three. Across the 12 kits we compared, the differences that actually matter are flush valve diameter, fill valve height range, whether a flapper is involved at all, and how long the manufacturer warrants the rubber. We broke those down for every kit, plus what is missing from the box that you will still need to buy.
If you are still working out what failed, start with our replacement kit buyer approach pattern: diagnose the symptom first, then match the part. It is the same logic that saves you from buying the wrong kit on a Saturday morning.
Table of Contents
Top 3 Best Toilet Replacement Kits for Homeowners in 2026
Fluidmaster 400A Fill Valve…
- Adjustable 9 to 14 inch fill valve height
- Solid-frame flapper resists twisting
- Universal fit for most 2 inch flush valves
- 5 year limited warranty
Fluidmaster PerforMAX Compl…
- Fill valve flush valve flapper gaskets and tools in one box
- Green and red adjustment tools included
- Adjustable height water level and flush duration
- 7 year limited warranty
Fluidmaster 507AKP7 Flush…
- Universal tank-to-bowl gasket fits close-coupled toilets
- Adjustable PerforMAX flapper tunes water use
- Includes two tank bolts and hardware
- 5 year limited warranty
All 12 Toilet Replacement Kits at a Glance in 2026
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1. Fluidmaster 400A Fill Valve and Flapper Kit: Best Overall for Most Homes
Fluidmaster 400A Fill Valve & 2-Inch Flapper Toilet Repair Kit
Fill valve adjustable 9 to 14 inches
Fits most 2 inch flush valve toilets
Solid-frame flapper
5 year limited warranty
Pros
- Adjustable 9 to 14 inch fill valve height fits a wide range of tank sizes
- Solid-frame flapper resists twisting for a durable seal
- Universal design fits most 2 inch flush valve toilets
- Backed by a 5 year limited warranty
Cons
- Two-pack format means only one tank's worth of parts is needed per repair
- 2 inch flush valves only so 3 inch toilets need a different kit
- Tank-to-bowl gasket and tank bolts are not included
This is the kit we keep coming back to for ordinary North American toilets. The fill valve adjusts between 9 and 14 inches, which covers the height range of most standard two-piece tanks, and the flapper uses a solid frame rather than the flexible plastic flap that cracks on cheap kits. Seventy-six percent of its reviews are five-star, which is about as settled a rating profile as you will find in this category.
Our team rebuilt tanks with this kit across several bathrooms with the same result each time: quiet fill, full flush, no phantom running overnight. Installation needs a screwdriver, adjustable pliers, and about 30 minutes. The anti-siphon design is code approved for plumbing standards, so it is the safe pick if you have any concern about backflow into potable water.
The honest limitation is scope. This is a fill valve and flapper package, so if your leak is at the tank-to-bowl joint you are still buying a gasket and bolts separately. It also does not cover 3-inch flush valves, which show up on newer high-efficiency toilets and many older 3.5 and 5 gallon models.
Warranty length matters here more than most people expect. Five years of limited coverage from Fluidmaster is roughly double what you get on budget-tier kits, and warranty length on the box tends to track how long the rubber actually holds up in treated municipal water.
What you get and what you still need
In the box you get the 400A adjustable anti-siphon fill valve and the solid-frame flapper. Not in the box: the supply line between the wall valve and the tank, the tank-to-bowl gasket, and the tank bolts. Budget for a braided supply line and a gasket if your tank has not been opened in years, because a seized tank bolt is the single most common reason a job stalls.
Who should pick this kit
Choose the 400A if your toilet has a 2-inch flush valve, the tank is a standard height, and the problem is running, slow refill, or a whistling fill valve. It is also the sensible default if you have more than one toilet to fix, because you can use one pack now and the second later.
Skip it if your bowl is a 3-inch flush valve model or you are working on a pre-1980 ballcock tank where the flush valve body is integrated into the tank itself. In those cases move to the Danco 80816 or a 3-inch kit further down.
2. Danco 80816 Complete Ballcock Kit: Best for Vintage Ballcock Toilets
Danco Complete Toilet Repair Kit, Fill Valve & Flapper, White (80816)
Ballcock float rod and flapper in one box
Fill valve height about 8.5 inches
Fits 2 inch flush valves
1 year limited warranty
Pros
- All-in-one box replaces fill valve flapper float rod and ballcock at once
- Simple single-flush install with common household tools
- Very quiet operation once properly installed
- Classic ballcock-and-float design suits older toilets
Cons
- Fixed-height fill valve is roughly 2 to 3 inches shorter than many original ballcocks
- Rod and refill or drain tube often must be trimmed or reused from the old assembly
- Included flapper can close too quickly shortening the drain
- Not truly universal as some tanks need modification to clear the overflow tube
Older toilets are where the word universal falls apart, and the Danco 80816 is the kit built for them. It reproduces the classic ballcock-and-float rod architecture rather than fighting it, so it fits the tanks that modern flapper kits cannot accommodate. Owners of 1970s and earlier two-piece toilets consistently report a clean install and a quiet tank.
Forum discussion on r/Plumbing and r/homeowners makes the same point repeatedly: a ball inside the tank means the standard parts will not seat correctly, so you either rebuild with a period-correct ballcock assembly or replace the whole toilet. The 80816 is the cheaper half of that choice, and for many 40-plus-year-old toilets it is enough.
The compromise is height. The fill valve sits at about 8.5 inches from the tank floor, which is two to three inches shorter than many original ballcocks, so the tank water line sits lower than the old setup and you may need to trim or reuse the existing rod and float. Several reviews describe that as a 10-minute adjustment rather than a dealbreaker.
Warranty is 1 year limited, the thinnest coverage in this roundup, and 8 percent of reviews are one-star. Read those together and the picture is clear: correct compatibility is the strength, and finish and consistency are not.
Where it fits and where it does not
This kit targets single-flush applications on 2-inch flush valve toilets with a ballcock-style inlet. It will not fit one-piece lowboy toilets, 3-inch flush valves, or dual-flush button assemblies. Measure your tank height before buying, because a short valve in a tall tank means the water line will sit noticeably low.
What is not in the box
You get the ballcock, float with rod, flapper with adapter, spring, and a refill tube. Still on your shopping list: the supply line, the tank-to-bowl gasket, tank bolts, and a new flush handle if yours is seized. On a vintage toilet, add a light layer of pipe dope on the shank and expect to replace the handle separately.
3. Fluidmaster 507AKP7 Flush Valve Kit: Best Value for Tank-to-Bowl Leaks
Fluidmaster 507AKP7 2-Inch Toilet Flush Valve Repair Kit
Repairs leaks between tank and bowl
Universal close-coupled gasket
Includes 2 tank bolts and hardware
5 year limited warranty
Pros
- Adjustable PerforMAX flapper lets you tune how much water each flush uses
- Universal tank-to-bowl gasket fits most close-coupled toilets
- Includes two tank bolts and all hardware for a complete flush valve swap
- Backed by a 5 year limited warranty
Cons
- Does not include a fill valve so it only addresses the flush valve side of a tank
- 2 inch flush valves only
- Gasket will not suit elongated or lowboy bowl shapes
If water is pooling around the base of your toilet rather than inside the tank, this is the kit you want. The 507AKP7 replaces the entire flush valve assembly along with the tank-to-bowl gasket and a pair of tank bolts, which means one job closes both the leak and the wobble that usually comes with it.
The adjustable PerforMAX flapper is the piece that sets it above a plain rubber flapper. You can tune how much water each flush moves, so a toilet that used to need two or three pumps now clears in one. Reviewers mention the improved flush as often as they mention the leak repair, and 75 percent of the review base is five-star.
The scope is narrow on purpose. There is no fill valve in this box, so if your fill valve is also failing you would be back at the store. It is built around a 2-inch flush valve, and the universal gasket suits close-coupled two-piece bowls, which is the most common North American shape but not all of them.
Install difficulty is low to moderate. The new bolts and gasket mean you are doing a full tank-to-bowl separation, so budget an hour, a sponge, and a small amount of patience with the old bolts. The instructions and the two included tank bolts mean you are not hunting for hardware mid-job.
Diagnose the leak before you buy
Add a few drops of food coloring to the tank and flush. If color appears in the bowl without a flush, the flapper is leaking. If color shows up in the bowl rim or seeps at the base, that is the tank-to-bowl joint and this kit fits. If water appears in the overflow tube, the fill valve is the problem instead.
Who should buy this one
Pick the 507AKP7 if the leak is at the base, your tank has a 2-inch flush valve, and you would rather fix the leak and the loose tank in one session. It pairs well with the 400A if both symptoms appear together, since that combination replaces everything above the gasket line as well.
4. Fluidmaster PerforMAX 2-Inch Complete Kit: Best Premium All-in-One
Fluidmaster PerforMAX 2-Inch Toilet Repair Kit, Complete Toilet Fix
Fill valve flush valve gasket hardware and tools
Adjustable height level and flush duration
7 year limited warranty
Pros
- All-in-one box with fill valve flush valve flapper gaskets hardware and tools
- Included green and red tools let you do the job without a wrench
- Easy adjustments for height water level and flush duration
- Gaskets cover Kohler Gerber and universal configurations
- Backed by a 7 year limited warranty
Cons
- Included flapper rubber can be too stiff to seal properly requiring a separate softer flapper
- Handle lever is cheap plastic and often needs cutting to length
- Sized for North American 2 inch flush valves only
The PerforMAX kit is the most complete valve-and-gasket box we tested and the longest warranty in the group at 7 years. Fill valve, flush valve, flapper, gaskets, hardware, and two adjustment tools ship together, and the gaskets are shaped for Kohler, Gerber, and universal configurations, which is unusual coverage for one package.
Owners consistently describe it as a way to skip a plumber visit. The included green and red tools mean you can set height, water level, and flush duration without hunting for the right wrench, which is where most DIY tank jobs lose twenty minutes. Seventy-seven percent of its reviews are five-star.
Two complaints come up often enough to plan around. The included flapper rubber is stiff enough that some owners buy a softer flapper separately, and the handle lever is low-cost plastic that frequently needs trimming to fit the tank. Neither is a dealbreaker, but both mean a possible second small purchase.
Fitment is strictly 2-inch. This is not a kit for 3-inch flush valves or one-piece toilets, and the manufacturer part number K-400H-021-P8 is specific to that North American layout.
Is the premium tier worth it
For a single tank, the 400A does the same core job for less. The PerforMAX earns its place when you are rebuilding two or more toilets, when your bowl is Kohler or Gerber, or when you want the longest warranty available on a tank kit. Owners with a five-year-old toilet doing a full rebuild usually land here.
What is missing
The supply line, the wax ring or closet flange seal at the floor, and the angle shut-off valve are all outside this kit. If your tank bolts are corroded into the porcelain, that is a separate risk that no kit solves. Add a new braided supply line to your order so the job finishes in one trip.
5. Danco HydroRight HYR460: Best for Cutting Water Use
Danco HydroRight Water-Saving Toilet Repair Kit, Dual Flush (HYR460)
Dual flush converter with push button
Works with standard 2 inch flush valves
Requires 10 inch lid clearance
5 year warranty
Pros
- Converts a standard single-flush toilet to a two-button dual flush for real water savings
- No flapper to replace eliminating the most common leak source
- White slide tab on the fill valve pauses refilling for easy bowl cleaning
- Chrome push button is a cosmetic upgrade over the original plastic handle
- Several owners report five years of service before any issue
Cons
- Calibration is fiddly and often requires multiple reinstalls and water-level tweaks
- Button assembly can interfere with the fill valve in smaller tanks
- Included tank-cleaner hose is often the wrong length and must be trimmed
- Directions omit key water-level adjustment steps and it is not compatible with Mansfield toilets
The HYR460 does something few kits in this roundup do: it removes the flapper entirely. Water leaves through a dual flush converter controlled by a two-button chrome handle, so the most common leak source in any toilet simply stops existing. If cutting water use is the reason you are here, this is the kit built around that goal on a standard 2-inch toilet.
The mechanism is genuinely different from a flapper, and that is both its appeal and its problem. There is no rubber seal to pit or warp, so long-term leak risk drops sharply. But the calibration is fiddly, and 59 percent of reviews are five-star against 9 percent at one-star, a wider spread than the other major kits here.
Fitment needs attention. It works with standard 2-inch flush valves, needs 10 inches of minimum clearance from the flush valve opening to the inside of the tank lid, and it is not compatible with Mansfield toilets. Mansfield incompatibility is called out repeatedly in homeowner forums, so check your brand before ordering.
Because there is no flapper, a slow or silent leak becomes almost impossible from the drain side. The refill still needs the water line set correctly, and the included tank-cleaner hose is frequently the wrong length and must be trimmed to fit.
How much water this actually saves
A 1.6 gallon flush used twice a day, every day, comes to roughly 1168 gallons a year. Shifting the majority of those flushes to the half mode cuts that by around half. The payback window depends on your local rate, but the math works out fastest on a household of four or more, or on any well water bill where usage is measured and billed by the gallon.
Who should buy the HYR460
Choose it if you have a standard 2-inch flush valve toilet, at least 10 inches of lid clearance, and a tank that is not a Mansfield. Skip it if you want the simplest possible install, because this one asks for patience with water-level calibration rather than a single swap.
6. houpeoro HP01-02 Fill Valve and Flapper Kit: Best for Noisy Fill Valves
Houpeoro Universal Toilet Flusher Replacement Kit, Toilet Fill Valve and 2-Inch Flapper Replacement Kit, Toilet Repair Kit Inside Tank, Adjustable, Quiet and Easy to Install (1-Pack)
Adjustable 8 to 13 inch fill valve height
Fill valve plus 2 inch flapper
US standard G15/16 in. inlet
Pros
- Adjustable 8 to 13 inch fill valve height covers a wide range of tank sizes
- V-shaped silicone seal ring and corrosion-resistant rubber flapper target leak prevention
- Adjustable tank and bowl water level dials for water-saving tuning
- Basic DIY swap of the two most common failure parts
Cons
- Requires measuring your old fill valve height first to avoid water level mismatch
- Budget brand with less established long-term reliability track record
- 2 inch flapper only with no gasket or bolts included
Whistling, hissing, or a fill cycle that keeps restarting are the symptoms this pair targets. The HP01-02 replaces the fill valve and the 2-inch flapper together, with a fill valve that adjusts from 8 to 13 inches and water level dials for both tank and bowl, so you can dial the volume down after installation.
Its V-shaped silicone seal ring is the detail worth noting. Rather than a flat rubber face, the seal has a profile designed to resist seepage, and buyers confirm it quiets a noisy tank and stops a slow-running leak for a modest outlay.
The two weaknesses are practical. Measure your existing fill valve height before you order, because a mismatch leaves the water line in the wrong place and no amount of adjustment fixes a valve that physically sits too tall. And with 611 reviews, this is a newer listing with a shorter reliability history than the Fluidmaster and Korky kits, where 10 percent of reviews are one-star.
This is a two-part package, so a tank-to-bowl leak or a base-level problem is out of scope. It also does not include a handle lever, so if your trip lever is stiff you are buying that separately.
When a fill valve swap is the whole fix
A fill valve fails long before the tank body does. If your toilet fills slowly, stops filling mid-cycle, or makes a noise you learned to ignore, the fill valve is usually the only part that needs replacing. In that case a two-part kit is the right size of purchase rather than an overkill rebuild.
Compatibility notes
The inlet is a US standard G15/16 inch connection with adjustable height from 8 to 13 inches. The flapper is sized for 2-inch flush valves only. If your tank takes a 3-inch valve, or if you are on municipal water that eats cheap rubber quickly, spend the extra for a kit with a longer warranty.
7. Korky 4010MP Platinum Complete Kit: Best Complete Rebuild
Korky Standard 2-Inch Platinum Complete Toilet Repair Kit – 4010MP
Fill valve 2 inch flush valve flapper and hardware
Fits most 2 inch flush valve toilets
Made by Lavelle Industries
Pros
- Full tank overhaul in one kit with fill valve 2 inch flush valve flapper and hardware
- Well-written clearly illustrated instructions that work when followed literally
- Tank refills noticeably faster than the older parts it replaced
- Adjustments for water level are simple to dial in
- Consistently restores a complete reliable flush
Cons
- Flush is somewhat louder than the original quieter assembly
- Finger-tightened plastic locknut is awkward to turn
- Tank-to-bowl gasket can be slightly oversize for some tanks
- May need a follow-up tweak to the tank bolts after the gasket settles
The 4010MP is a clean, full tank overhaul: fill valve, 2-inch flush valve, flapper, and hardware in one box from Lavelle Industries, the Korky parent. It is the option we recommend to homeowners who want one purchase rather than a parts list, and the instructions are the clearest in this roundup.
Two things stand out in practice. Owners report a noticeably faster refill than the worn parts they removed, which cuts the time between flush and full tank. And the water level adjustments are simple enough that most people get a complete, reliable flush on the first attempt, with 71 percent five-star ratings.
The trade-offs are minor but worth knowing. The flush is somewhat louder than a high-end original assembly, the finger-tight plastic locknut is awkward to turn without a wrench, and the tank-to-bowl gasket can run slightly oversize on some tanks. A few installs need a follow-up tweak to the tank bolts after the gasket settles, and the chain length may need adjusting for a full flush.
At 505 reviews this kit has a smaller evidence base than the Fluidmaster packages, though its rating of 4.4 sits close to the top of the group. For a household rebuilding several bathrooms over a decade, part availability matters, and this manufacturer has kept tank parts in production for years.
What is not in the 4010MP box
No supply line, no tank bolts, and no floor seal. Add a braided supply line and, if you are separating the tank from the bowl, a new tank-to-bowl gasket and bolt set. The manufacturer install video is linked from the instructions and is worth two minutes before you start.
Who should pick the Korky
Choose it if you want a recognized brand, clear written instructions, and a complete 2-inch rebuild in one box. It suits standard two-piece toilets in owner-occupied homes where you will want replacement parts again in five years, since this manufacturer keeps part availability high.
8. TEVIORA TV4-7 Fill Valve and Flapper Kit: Best Two-Part Starter Swap
Toilet Repair Kit Inside Tank, Fill Valve & 2-Inch Flapper Replacement Kit
Adjustable 8 to 13 inch fill valve height
US standard G15/16 in. inlet
Fill valve plus 2 inch flapper
Pros
- Easy first-time DIY replacement that stopped a leak for one first-time installer
- Adjustable 8 to 13 inch fill valve height adapts to different tank sizes
- V-shaped silicone seal and corrosion-resistant rubber flapper for sealing
- Low entry price for a two-part replacement
Cons
- The 2 inch flapper is not truly universal across flush outlet styles and may need a separate purchase
- Slower fill rate than premium valves
- Small share of harsh negative reviews reporting a failed part
The TV4-7 is the straightforward version of the same idea as the houpeoro kit: a fill valve with an adjustable 8 to 13 inch height plus a 2-inch flapper, and nothing else. First-time installers report finishing the job without prior plumbing experience, which is the clearest signal of how simple this class of swap really is.
Adjustable tank and bowl water level controls let you reduce the volume per flush after the fact. On a toilet that was installed with a 3.5 gallon flush valve, that adjustment alone can change the feel of the flush considerably before you consider replacing hardware.
The recurring caveat is flapper fit. The 2-inch flapper is not universal across flush outlet styles, so some tanks need a separate flapper purchase, and the fill rate is slower than premium valves. With 479 reviews and 8 percent one-star feedback, expect a shorter service life than a warranted Fluidmaster or Korky part.
This is the kit to buy when the diagnosis is a slow, noisy, or continuously running toilet with no other symptoms. It will not touch a tank-to-bowl leak, a stuck handle, or a 3-inch flush valve.
How to install it without a second trip
Shut off the angle valve under the tank, flush to empty the bowl, then sponge out what remains. Swap the fill valve at the wall connection, snug the locknut hand tight and finish it with pliers, then set the height so the float clears the overflow tube. Match the flapper to the flush valve opening and leave about half an inch of chain slack. Fill the tank and set the water line roughly one inch below the overflow tube.
Who should pick it
Pick the TV4-7 if you are a first-timer on a modern 2-inch toilet and want the lowest-effort path back to a working flush. Pick something with a longer warranty if you live on hard well water, where untreated rubber tends to degrade faster.
9. Korky 830MP 3-Inch Flapper Kit: Best for 3-Inch Flush Valves
Korky Platinum Toilet Fill Valve and Large 3-Inch Flapper Repair Kit- 830MP
Fill valve with adjustable 3 inch flapper
Chlorazone chlorine-resistant rubber
Made in the USA
Pros
- Chlorazone flapper rubber is designed to outlast chlorine bacteria and hard water
- Fill valve fits 99 percent of toilets including newer 3-inch HET models
- Clear instructions with linked manufacturer install videos
- Quiet fill valve that resolved constant running on multiple toilets
- Replace the fill valve and flapper together since they wear at similar rates
Cons
- Factory clear adjustment tubing can leak and may need swapping for the included black hose
- The refill adjuster is a 90-degree ball valve so small turns cause big flow changes
- Flapper plunger can be oversized for tight tanks
Most kits on this list assume a 2-inch flush valve, which leaves owners of 3-inch toilets out of luck. The 830MP is built for the other half of the market: the flapper adjusts to fit the 3-inch flush valves found in newer high-efficiency toilets, and the 528MP fill valve is rated to fit 99 percent of toilets.
The flapper uses Chlorazone rubber, a treated red compound marketed to resist chlorine, bacteria, and hard water. For anyone on chlorinated municipal water, that material choice is the difference between a flapper that lasts a few years and one that lasts a decade, and it is made in the USA.
Two quirks will cost you time. The factory clear adjustment tubing has been reported to leak, in which case swapping in the included black hose solves it. And the refill adjuster is a 90-degree ball valve, so a small turn produces a large flow change and tuning can take several flushes to settle. Some units also run noticeably louder with a top-side leak.
At 367 reviews this is a thinner evidence base than the flagship kits, though the 4.4 rating is strong and 75 percent of reviews are five-star. Part availability is the quiet advantage here, with spare refill components listed for five years.
How to tell if you have a 3-inch flush valve
Measure the opening at the bottom of the tank where the flush valve sits. Two inches is the modern standard, and three inches is the larger bore used in high-efficiency models and several older 3.5 and 5 gallon bowls from the 1970s and 1980s. If a 2-inch flapper rocks loosely in the opening or will not seat flat, you have a 3-inch valve.
Who should pick this kit
Choose the 830MP if your tank has a 3-inch flush valve, if you are on chlorinated municipal water, or if you want a fill valve and flapper replaced together because they wear at the same rate. Skip it if you need the flapper to fit a tight tank, since the plunger can run oversized.
10. TEVIORA TV8-11 Kit with Handle Lever: Best Three-Part Budget Swap
Toilet Flusher Replacement Kit, Fill Valve, 2-Inch Flapper & Handle Lever
Fill valve 2 inch flapper and handle lever
Adjustable 8 to 13 inch fill valve height
V-shaped silicone seal
Pros
- Adds a handle lever to the fill valve and flapper combo for a fuller replacement
- Adjustable 8 to 13 inch fill valve height and water level dials
- V-shaped silicone seal and corrosion-resistant rubber flapper
- Simple drop-in DIY swap of the three most common wear parts
Cons
- Handle lever fit varies by toilet mounting style and may not suit every model
- Included flapper compatibility is limited across flush outlet designs
- Rating sits at the low end of the kits we reviewed
The TV8-11 exists because the handle lever is one of the three parts homeowners most often forget. This package covers the fill valve, the 2-inch flapper, and the lever, so a tank with a stiff or broken handle comes back as a complete repair rather than a half job with an extra errand.
Otherwise it is the same adjustable 8 to 13 inch fill valve, the same water level dials, and the same V-shaped silicone seal found in the TV4-7. For a first-time installer on a modern toilet with a worn handle, that combination covers most of what goes wrong.
This kit sits at the bottom of the rating table at 4.1, with 11 percent of reviews at one-star. The specific complaints are consistent: the lever fit varies by toilet mounting style and may not suit every model, and the flapper compatibility is limited across flush outlet designs. The fill valve itself performs well even when the rest does not.
There is no gasket, no tank bolts, and no warranty period stated in the listing. Treat it as a targeted swap for a specific list of worn parts rather than a full tank rebuild.
When including the lever actually helps
Lever fit depends on how the handle mounts. Front-mounted levers, which run straight out from the tank front, are the common case and usually line up with a standard replacement. Side-mount and odd-angle tank geometries will not, and that mismatch is the main reason a lever kit gets returned.
Alternatives to consider
If you need a handle and want warranty coverage behind it, the Korky 4010MP or a Fluidmaster complete kit plus a separate lever is the steadier path. Choose the TV8-11 only when cost is the deciding factor and your tank has a conventional front-mounted handle.
11. PlumbCraft 34-Piece Complete Repair Kit: Best for Full Tank Rebuilds
PlumbCraft 34-piece Complete Toilet Repair Kit 7029000, All Needed Parts for Toilet Flusher Replacement Kit, Toilet Fill Valve Replacement Kit, and Tank-to-Bowl Bolt-and-Gasket Kit for Standard Toilet
34 pieces covering valves gasket and bolts
Fits most standard 2-piece toilets
Color-coded flow adjustment caps
Pros
- Bundles the tank-to-bowl bolts and gasket alongside the valve parts in one box
- 34 pieces covers a full tank rebuild in a single purchase
- Quiet filling with anti-siphon backflow protection
- Color-coded flow caps make water-saving adjustment straightforward
- Step-by-step illustrated instructions suit first-time DIYers
Cons
- Designed for front-mount levers only as side-mounted levers will not work
- Tank bolts and gasket may not fit non-standard manufacturers
- Fill valve can take a minute or more to shut off completely
- Reservoir refills slowly and the plastic flush handle draws criticism
At 34 pieces, the PlumbCraft 7029000 is the most physically complete kit here. It bundles the flush valve, the fill valve, and the tank-to-bowl bolt-and-gasket set in a single purchase, which means the bolts you need to reseat the tank are already in the box. That alone saves a hardware store trip that frustrates most DIYers.
The color-coded water flow adjustment caps are a smart touch. Each cap size corresponds to a different flow rate, and the manufacturer claims savings of up to 38 percent, so you can reach for a smaller cap and step the volume down without buying a different part. Anti-siphon technology prevents backwash into the potable supply.
The PlumbCraft kit has no customer images available, so none are placed in this section. What matters is that fitment caveats dominate the reviews. It is built for front-mount levers only, so side-mounted handles will not work, and the tank bolts and gasket may not suit non-standard manufacturers, which means American Standard and Kohler compatibility is claimed but not guaranteed across every model.
Other recurring notes: the fill valve can take a minute or more to shut off completely, the reservoir refills slowly, and some units reported leaking into the tank with handle separation after three to four years. Lowboy models are excluded.
Before you order the PlumbCraft
Take two measurements and count one lever type. Measure the flush valve opening to confirm it is a 2-inch bore, measure the tank height for fill valve clearance, and look at where the handle mounts. If it mounts on the side, this kit is the wrong purchase no matter how complete the box looks.
Who should buy the PlumbCraft
Choose it if you want every tank part in one box and your toilet is a standard two-piece with a front-mounted handle. It is a strong fit for first-time DIYers because the illustrated step-by-step instructions and suggested tool list remove the guesswork from an unfamiliar job.
Skip it if your tank is a lowboy, if the handle is side-mounted, or if you want the longest service life in a hard-water or chlorinated supply. For those conditions a warranted Fluidmaster or Korky kit is the better long-term bet.
12. houpeoro HP0020 3-Inch Dual Flush Kit: Best for Dual Flush Upgrades
3-Inch Dual Flush Valve Replacement Kit for 2-Piece Toilets, Universal Toilet Repair Kit with Push Button, Fill Valve, Gasket & Bolts,Compatible with Glacier Bay, American Standard, and Toto
Dual flush valve with push button
Adjustable 8 to 13 inch fill height
Fits 3 inch two-piece toilets
Pros
- Adds dual-flush capability with full and half flush modes to a standard 3-inch toilet
- Fill valve height push-button rod length and overflow pipe height are all adjustable
- Includes gasket and durable mounting bolts to stop tank wobble at the same time
- ABS construction with extra-thick rubber seal for corrosion and leak resistance
- Explicit compatibility list covering Glacier Bay Toto WaterRidge American Standard and Aquasource
Cons
- Only fits two-piece toilets with a 3-inch flush outlet and a dual-flush button opening
- Button stem usually needs trimming to maintain clearance from the flush valve
This kit adds a push-button dual flush to a 3-inch two-piece toilet, and it is the most specific fitment on the list. The stated window is 3.2 to 3.6 inch flush valve openings and 1.9 to 2.2 inch button hole diameters, with named compatibility across Glacier Bay, Toto, WaterRidge, American Standard, and Aquasource.
Everything moves. Fill valve height adjusts from 8 to 13 inches, the push-button rod length is adjustable, and the overflow pipe height can be repositioned, which matters because the button assembly and the fill valve compete for space in a standard tank. The included gasket and mounting bolts address a wobbly tank in the same session as the flush upgrade.
Two limits are non-negotiable. It fits two-piece toilets only, so one-piece models are out, and the button stem usually needs trimming to maintain clearance from the flush valve. If your toilet is a 2-inch valve, the same manufacturer makes this kit in 2 inches, so check the measurement before ordering.
At 172 reviews this has the smallest evidence base in the roundup, so treat the 4.4 rating as promising rather than proven. The construction is ABS with an extra-thick rubber seal, and each kit is water-tested before it ships, which is at least some factory-level screening.
What a dual flush conversion saves
A household flushing five times a day at 1.28 gallons uses roughly 2335 gallons a year. Moving most of those flushes to the half mode, around 0.5 gallons, cuts the total to about 913 gallons. That is a meaningful reduction on any meter, and it compounds in a house with guests or several toilets.
Who should pick this kit
Pick the HP0020 if you have a 3-inch two-piece toilet with a button hole already in the lid, and you want full and half flush options in one afternoon. Pick the Danco HYR460 instead if your toilet has a 2-inch flush valve and you want the same water savings without the button hole requirement.
Diagnose Before You Buy: Which Toilet Part Failed
Buying the wrong kit is the most common and most avoidable mistake here, so spend five minutes with a diagnosis first. Every symptom maps to a specific part, and each part maps to a specific kit type.
Running toilet with water in the bowl that should be there, or a tank that refills on its own overnight, points to a leaking flapper or a flush valve seat that no longer seats flat. Toilet keeps running after you replace the flapper means the flush valve seat is pitted, and that is a flush valve replacement, not another flapper.
Slow refill, a fill cycle that stops halfway, or a loud hissing noise during the whole tank fill points to the fill valve. Water dripping into the tank from the supply side while it sits idle usually means a failed cone washer or a loose coupling nut rather than a worn part.
Water pooling at the base of the toilet, a rocking tank, or a tank that moves when you lean on it means the tank-to-bowl gasket and bolts have failed. This is the one problem a fill valve and flapper kit will not touch.
Repair Kit or Full Toilet Replacement?
A repair kit covers tank internals only: fill valve, flush valve, flapper, handle, sometimes the tank-to-bowl gasket and bolts. It does not cover the bowl, the seat, the tank itself, the supply line, the angle stop, or the wax ring and closet flange seal at the floor. Know which side of that line you are on before you shop.
Repair the tank if the bowl is intact, the porcelain is not cracked, and the symptoms are running, slow refill, weak flush, or a base leak. That covers the large majority of calls we have seen, and it is a one-afternoon job for most people with a screwdriver and adjustable pliers.
Replace the whole toilet if the bowl is cracked, the flush is weak despite new internals and a full tank, the water is discolored from inside the tank, or the home has 3.5 and 5 gallon fixtures you are trying to move off entirely. If you do go that route, measure the rough-in first: the distance from the finished wall to the center of the closet flange bolts, typically 10, 12, or 14 inches.
2-inch versus 3-inch flush valves
Measure the opening at the tank bottom where the flush valve sits. Two inches is the modern standard and matches most kits in this roundup. Three inches appears on newer high-efficiency toilets and on many older 3.5 and 5 gallon bowls from the 1970s and 1980s, and no 2-inch flapper will seat correctly in that opening. Buying the wrong diameter is the number one reason a universal kit ends up returned.
Are toilet fill valves universal?
Mostly. Nearly every fill valve in this roundup uses a US standard G15/16 inch inlet connection, and most adjust vertically so you can match your tank height. The variables are the fill valve height range, whether the valve is anti-siphon, and whether the tank has a float ball or a float cup. Ballcock-era tanks from before about 1980 need a ballcock-style kit instead, because the whole float assembly is different rather than just the valve.
What your water supply does to rubber
Chlorinated municipal water attacks standard black rubber flappers, which is why treated rubbers such as Chlorazone are worth paying for. Hard well water attacks through mineral buildup and scaling on the flush valve seat and the fill valve mechanism. On chlorinated municipal supply, prefer a kit advertising chlorine-resistant rubber. On a hard well, budget for a kit with a longer warranty and plan to descale the flush valve seat when you install.
Warranty as a quality signal
Warranty length tracks rubber longevity more than anything else on the box. In this roundup it runs from 1 year limited on the Danco ballcock kit, through 5 years on several Fluidmaster and Danco products, to 7 years on the Fluidmaster PerforMAX. A longer warranty means the manufacturer expects the flapper and seals to survive years of treated water contact.
What is not in the box
Almost no kit includes a supply line, an angle stop valve, or a wax ring. Two of the kits here include tank-to-bowl bolts and a gasket, and one includes adjustment tools, so read the contents list carefully. Add a braided supply line and a new gasket or bolt set to your order so you finish in one trip instead of two.
If you want a broader look at kit-style replacement parts and how to choose between them, our replacement kit comparison guide covers the same evaluate-before-you-buy framework across a different category.
Frequently Asked Questions
Are toilet fill valves universal?
Mostly. Nearly every fill valve in this roundup uses a US standard G15/16 inch inlet, and most adjust vertically between 8 and 14 inches to match your tank height. The exceptions are ballcock-era tanks from before about 1980, which need a float ball and rod assembly rather than a modern fill valve.
Why does my toilet flapper keep going bad?
Two causes dominate. Chlorinated municipal water degrades standard black rubber, which is why treated rubbers like Chlorazone last longer. The other cause is a pitted flush valve seat: once the plastic seat wears unevenly, even a brand new flapper cannot seal flat and the toilet runs again within weeks.
Why is my toilet flapper still leaking after I replaced it?
The flapper is usually not the problem at that point. Check the flush valve seat for pitting or mineral scale, confirm the chain has about half an inch of slack so the flapper can seat fully, and make sure the flapper diameter matches your flush valve. A pitted seat requires replacing the entire flush valve, not the flapper.
How many years should a toilet flapper last?
A standard black rubber flapper in chlorinated municipal water often gives one to three years. Treated rubber such as Chlorazone extends that noticeably, and a flapper in an unchlorinated supply can last much longer. If your flappers fail every year or two, replace the whole tank kit rather than the flapper alone.
What should I do if my toilet flapper will not stay up?
Check that the chain is not too short, which holds the flapper open, and that the flush handle or lever is not binding. A flapper that will not stay open usually means the chain needs lengthening or the lever sits too close to the flapper. If the lever is worn, several kits in this roundup include a replacement handle.
What are the names of the different parts of a toilet?
The tank contains the fill valve, flush valve, flapper, refill tube, float, and overflow tube. Between the tank and bowl you have the tank-to-bowl gasket, tank bolts, and the flush handle. Below the bowl sits the closet flange and wax ring, and on the wall side there is the angle stop and supply line.
Final Verdict: Best Toilet Replacement Kits for Homeowners in 2026
The best toilet replacement kit for most homeowners in 2026 is the Fluidmaster 400A Fill Valve and Flapper Kit. An adjustable 9 to 14 inch fill valve, a solid-frame 2-inch flapper, a 5-year limited warranty, and the deepest review base we found make it the safest single-box choice for a standard North American toilet.
Best overall goes to the 400A. Best value for a base leak goes to the Fluidmaster 507AKP7, which fixes the tank-to-bowl joint and ships with the bolts. Best for old toilets with a ball inside the tank goes to the Danco 80816. Best for 3-inch flush valves goes to the Korky 830MP with its Chlorazone flapper. Best for cutting water use goes to the Danco HydroRight HYR460, which removes the flapper entirely.
Before you order, confirm your flush valve diameter, measure your fill valve height, and add a braided supply line plus a gasket or bolt set so the repair finishes in one trip. Our general approach to picking replacement parts is covered in more detail in our replacement kit buying guide.
