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The 8 Best toilet flush valves of 2025

Are you trying to find toilet flush valves among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling toilet flush valves on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 20 hours of research and did 45 toilet flush valves tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best toilet flush valves you can buy today

SaleNo. 1
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor
  • Fix noisy, or slow filling fill valves with the quietest, most powerful toilet fill valve available
  • Easy to install, step-by-step instructions included
  • Universal fit for most toilet models and brands
  • Tank and Bowl water level adjustment dials to customize the perfect flush and save. EZ-Twist height adjusts from 9 in. to 14 in. to fit more tanks
No. 2
Fluidmaster 507AK PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit with Gasket and Bolts
  • ENHANCES YOUR TOILET’S POWER: Toilet fill valve with bolts and gasket replaces old or inefficient fill valves to repair a leaking toilet tank and optimize flush performance
  • UNIVERSAL DESIGN: Fill valve replaces any two-piece toilet flush valve and is ideal for use in 3.5 gallons per flush toilets
  • CORROSION RESISTANT: The 502 2-inch flapper features corrosion/hard water-resistant materials
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
SaleNo. 3
Korky 528MP QuietFILL Platinum Fill Valve-Fits Most Toilets-Easy to Install-Made in USA, Universal 99%, Black
  • UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It's easy to install & keeps your toilet running smoothly.
  • EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs. Adjustable from 7.75'' to 13.5.''
  • INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, refill adjuster, coupling nut, tamper proof key & instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.
No. 4
Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve,Black
  • fluidmaster400a anti-siphon toilet fill valve - fm400a
  • This is highly durable
  • This is manufactured in MEXICO
No. 5
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
  • The PerforMAX fill valve and 2 in. Flapper Kit is the premium solution to make your 2 in. flush valve toilet run like new
  • PerforMAX toilet fill valve offers high performance with adjustable tank and bowl water for full water control
  • Fast and Easy to Install
  • PerforMAX Water-Saving Toilet Flapper included to save water use per flush
  • Adjustable fill valve height to fit more tanks, corrosion resistant flapper, Solid frame for a secure seal, 7 year warranty
No. 6
Fluidmaster PerforMAX Universal Toilet Fill and Flush Valve Repair Kit
1,712 Consomer Reviews
Fluidmaster PerforMAX Universal Toilet Fill and Flush Valve Repair Kit
  • Fixes most toilet problems - replaces poor performing, or outdated fill valves and cracked flush valves
  • Quick and Easy-to-Install, no tank removal repair kit cuts repair time in 1/2
  • Universal design fits most toilet models
  • Simple peel and stick flush valve install
  • PerforMAX 2” Flush Valve Repair Kit - high performance, quiet and powerful - included, with toilet flapper and seal
  • Fits 2” flush valve toilets including Kohler, Toto, American Standard & more
  • Adjustable for maximum performance and water savings
  • Best suited for 1.28 HET & 1.6 GPF toilets made after 2005
  • Anti-siphon design won’t contaminate the water supply
  • Durable build includes a 5 year warranty
SaleNo. 7
Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 pack
  • LONG-LASTING DURABILITY: Toilet flapper with solid frame replaces leaky, corroded flappers, preventing twisting, ghost flushing, and running toilet problems
  • UNIVERSAL DESIGN: Adjustable flapper fits most 2-inch flush valve toilets and is ideal for use in high efficiency 1.28 to 3.5 gallons per flush toilets
  • ADJUSTABLE TO SAVE WATER: Dial flapper adjusts for maximum flush efficiency and to save water
  • CORROSION RESISTANT: Solid frame 502 2-inch flapper features corrosion-resistant Microban material to prevent breakdown and leaks due to bacteria and chlorine and is chlorine and hard water resistant
  • EASY INSTALLATION: Easily installs in 10 minutes or less to optimize flushing performance; 5 YEAR WARRANTY
  • Adjusts for maximum flush efficiency
  • Fixes most common cause of a running toilet
  • Rigid frame aligns flapper properly on every flush
  • Micro ban prevents growth of harmful microbes
SaleNo. 8
Kohler Genuine Part 1083980 3" Toilet Canister Flush Valve Kit, 5 x 5 x 10-7/8 inches
  • 3" Toilet Canister Flush Valve Kit: Features a 3" canister with a 3" outlet
  • Compatible: Canister flush valve kit for Kohler Cimarron toilets
  • Identification: Look inside the back wall of the toilet tank to identify tank model number
  • Kohler Cimarron Line Item: Compatible with Kohler Cimarron tank model number K-4634
SaleNo. 9
Korky 4033BP Universal Mansfield Flush Valve & Seal Kit Tower Style
  • Fits Mansfield 208, 209, 210 and 211 flush valves and toilet model 174. Replaces the both 1.6 (white) and 3.5 (black) gallon per flush tower style flush valves.
  • Includes: Flush Valve, Flush Valve Seal, and Locking Nut
  • Made in the USA
  • 5 Year Warrranty
SaleNo. 10
Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5" x 3.5" x 3"
  • Protect the warranty on KOHLER products, always look for the KOHLER GENUINE PARTS logo
  • Adjustable fill valve. Valve Type: Manual
  • Look at shank color to determine correct part; if black, use this part and if grey, use GP1138930
  • Cap color may vary
SaleNo. 11
TOTO TSU99A.XR Fill Valve, Blue
  • Adjustable for all TOTO toilet tanks
  • Resets your tank back to optimal performance
  • Includes valve, refill tube and clamp, cone washer and nut
  • Standard 7/8 inch inlet connection
SaleNo. 12
American Standard 3280.040-0070A Champion Flush Valve Assembly for 1 Piece Toilets, 6.40 in wide x 7.00 in tall x 10.3 in deep, Black
  • For use with American Standard Champion ONE-PIECE toilet- Check your model for compatibility
  • Compatible with 2034014-Champion 4 One-Piece 1.6 GPF/6.0 LPF Left Trip Lever 16-1/2-in. Elongated Toilet (Discontinued)
  • Compatible with 2004314-Champion 4 One-Piece 1.6 gpf/6.0 Lpf Standard Height Elongated Toilet With Seat
  • Easy to install- installation video available on our website
  • Please call us for more fit information: 855-815-0004
  • Check your model for compatibility
SaleNo. 13
Korky 528 Toilet Fill Valve, Universal, Black(Packaging May Vary)
  • UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It's easy to install & keeps your toilet running smoothly.
  • EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs. Adjustable from 7.75'' to 13.5.''
  • INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, coupling nut, tamper proof key & instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.
No. 14
Fluidmaster 400ARHRKP10 PerforMAX Universal High Performance All in One Repair Kit for 2-Inch Flush Valve Toilets, Easy Install
  • PREMIUM TOILET PERFORMANCE: All in one toilet repair kit replaces inefficient fill and flush valves, leaky flappers, and broken toilet handles to make your toilet run like new
  • UNIVERSAL DESIGN: PerforMAX toilet fill valve with 2X greater refill rate adjusts easily from 10 – 15 inches and is ideal for use in high efficiency 1.28 to 1.6 gallons per flush toilets
  • HIGH PERFORMANCE FLAPPER: PerforMAX 507AK high performance 2-inch adjustable water-saving toilet flapper eliminates twisting and ghost flushing to maximize water usage with each flush, Deteriorating or damaged flush valve
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
  • Effectively control fill and flush volume, while upgrading toilet parts
SaleNo. 15
KOHLER 3" Toilet Flush Valve Kit, Black, Compatible with Kohler Wellworth toilets, 3" Canister with a 3" Outlet, GENUINE PART 1069722
  • 3" Toilet Canister Flush Valve Kit: Features a 3" canister with a 3" outlet
  • Compatible: Canister flush valve kit for Kohler Wellworth toilets
  • Identification: Look inside the back wall of the toilet tank to identify tank model number
  • Kohler Wellworth Line Item: Compatible with Kohler Wellworth Highline Classic tank model number K-4632
SaleNo. 16
Zurn Z6000-WS1-YB-YC Manual Flush Valve, Z6000 Aquaflush Exposed Closet Flush Valve, Cast Wall Flange, 1.6 GPF, Sweat Solder Kit
  • Exposed sweat solder kit
  • Polished chrome-plated finish cast wall flange
  • 1.6 gpf closet flush volume
  • Clog-resistant linear bypass diaphragm
  • Chemical resistant gaskets and seals for extended service life with lower maintenance costs; Quiet operation and soft-close technology that eliminates water hammer; Polished chrome finish; 3-year warranty; LEED and WaterSense compliant options;
SaleNo. 17
Fluidmaster K-507A-008 Universal 2-Inch Adjustable Toilet Flush Valve Repair Kit with Toilet Tool Multicolor
  • Fix your leaky tank and restore flush performance with this adjustable flush valve repair kit
  • Easy to install, universal design fits 2 in. flush valve toilets
  • Adjustable- flush valve height adjusts with a twist to fit more tanks
  • PerforMAX Water-Saving Toilet Flapper included to save water use per flush
  • Universal tank-to-bowl gasket system included, for use with Kohler, Gerber and most any 2 in. flush valve toilet, Toilet tool included, Corrosion resistant flapper, 5 year warranty
SaleNo. 18
Danco HYR460 HyrdroRight Water-Saving Toilet Tank Repair Kit with Dual Flush Valve, Includes Dual Push Btton Handle in Chrome
4,324 Consomer Reviews
Danco HYR460 HyrdroRight Water-Saving Toilet Tank Repair Kit with Dual Flush Valve, Includes Dual Push Btton Handle in Chrome
  • WATER-SAVING DUAL FLUSH TOILET REPAIR KIT: Converts a standard toilet into a dual flush toilet that saves water by reducing the amount of water used with each flush. The HYR451T combines two products that together will increase your toilet’s efficiency: HYR271 Dual Flush Converter and HC630 HydroClean fill valve
  • COMPATIBILITY: The Dual Flush Converter works with standard 2 in. flush valves and requires a 10-inch minimum clearance from highest point of the flush valve opening to the inside of the tank lid. NOT COMPATIBLE with 1.28 GPF toilets, toilets with 3″ flush valves, or Mansfield Brand toilets
  • FLUSH VALVE REPLACEMENT INSTALLATION TIP: Be sure to place the Dual Flush Converter directly in the center of your existing flush valve
  • IMPORTANT INSTALLATION TIP: Do not remove overflow tube and flush valve from toilet tank; the Dual Flush Converter is a replacement to the existing flapper; slide the blue silicone dome gasket down the overflow tube, seating the gasket into the flush valve
  • ELIMINATES TOILET LEAKS: Eliminates common leaky toilet problems due to a worn-out flapper, handle or faulty flapper chain; the permafit silicone seal is also chlorine and chemical resistant and will not warp
  • DUAL-FLUSH LIGHT-TOUCH BUTTON UNIQUE SPLIT HANDLE DESIGN: The short center button is the Quick Flush setting that uses significantly lower water volumes for liquids and paper – this setting is needed 4 out of 5 times. The second complete push button at end is the Full Flush that uses the normal amount of water for solids
  • DETECTS LEAKS & WATER ADJUSTMENT CALIBRATION: Detects leaks and signals when a leak is found. The Total Repair Kit also can be calibrated to adjust the exact amount of water needed which saves water.
SaleNo. 19
KOHLER 2" Toilet Canister Flush Valve Kit, GENUINE PART 1188999, Compatible with KOHLER Cimarron Tank, 3" Canister with a 2" Outlet
  • 2" Toilet Canister Flush Valve Kit: Features a 3" canister with a 2" outlet, which harnesses the natural force of gravity and optimizes flush performance
  • Complete Canister Kit: Including gaskets for 1.28 gpf single flush toilet
  • Compatibility: Compatible with KOHLER Cimarron tank model number K-4421
  • How to Locate the Tank Model Number: Look inside the back wall of the toilet tank to identify tank model number
  • Kohler GENUINE Parts: Designed by Kohler engineers to maintain original product performance and promote product longevity
SaleNo. 20
Korky 427BP Flush Valve Seal For Mansfield 210 and 211 Toilet Repairs , Red
  • TOILET VALVE SEAL FITS MANSFIELD TOILETS - Replaces both 2-inch flush valve seals, part numbers 201 and 211
  • QUICKLY FIX running and leaking toilets and eliminate costly water waste
  • FLUSH SEAL MADE IN USA - Proudly made in America and backed by a 5 year warranty
  • TOILET SEALS MADE OF FLEXIBLE RUBBER for a tight seal on Mansfield flush valves

How to choose a good toilet flush valves

Does the idea of finding a fantastic toilet flush valves make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in toilet flush valves. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top toilet flush valves products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top toilet flush valves on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top toilet flush valves brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top toilet flush valves based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the toilet flush valves were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good toilet flush valves, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your toilet flush valves.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting toilet flush valves for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our toilet flush valves. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what toilet flush valves should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on toilet flush valves.