Best Fluidmaster Toilet Flush Valves in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Fluidmaster Toilet Flush Valves

Fluidmaster 400CRP14 Fill Valve and 2-inch Flapper Repair Kit (Pack of 1)
#TOP1
Fluidmaster 400Crp14 Fill Valve And 2-Inch Flapper Repair
9.9
PM SCORE
Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 pack
#TOP2
Fluidmaster 502P21 Performax Universal Water-Saving Long Life Toilet
9.9
PM SCORE
DANCO Toilet Handle Replacement, Chrome, 8 inch, 1-Pack (80806)
#TOP3
Danco Toilet Handle Replacement, Chrome, 8 Inch, 1-Pack
9.9
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Fluidmaster Toilet Flush Valves of 2026

Market Overview
Fluidmaster Toilet Flush Valves Reviewed
  • Reviews Analyzed: 100699 Items
  • PM Avg. Rating: 8.5 / 10
25 Products Evaluated
  • Highest Price: $35.00
  • Lowest Price: $6.29
  • Avg. Price: $16.75

Fluidmaster 400Crp14 Fill Valve And 2-Inch Flapper Repair Kit (Pack Of 1)

FLUIDMASTER
400CRP14
3.71 X 6.00 X 15.76 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

FIXES NOISY, RUNNING TOILETS: Toilet repair kit replaces inefficient fill and flush valves, and leaky flappers to help solve most common toilet fill problems

UNIVERSAL DESIGN: 400A toilet fill valve adjusts easily from 9 – 14 inches, fits most 2-inch flush valve toilets, and is ideal for use in 1.6 to 3.5 gallons per flush toilets or larger. Dual Flush: No

CORROSION RESISTANT: Solid frame 501 2-inch flapper features corrosion-resistant Microban material to prevent breakdown and leaks due to bacteria and is chlorine and hard water resistant

EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again

Fluidmaster 502P21 Performax Universal Water-Saving Long Life Toilet Flapper For 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 Pack

FLUIDMASTER
502P21
4.90 X 3.50 X 3.50 Inches
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

Danco Toilet Handle Replacement, Chrome, 8 Inch, 1-Pack (80806)

DANCO
80806
3.70 X 12.40 X 0.60 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

RELACEMENT TOILET FLUSH LEVER: This Danco Toilet Tank Handle is ideal for updating or replacing Broken, worn-out toilet handle

8 INCH TOILET LEVER LIFT ARM: The toilet handle lift arm is 8 inches in length and has three holes to allow for the toilet flapper chain to be adjusted for ideal flush functionality

COMPATIBILITY: This toilet handle is designed to fit most standard toilets, but it is crucial that you check the arm length to ensure proper fit

BUILT TO LAST: Constructed of durable aluminum with a corrosion resistant finish

CHROME FINISH: Classic chrome finish will compliment your existing bathroom décor

“THERE’S A DANCO FOR THAT” BRAND ADVANTAGE: This toilet handle comes with the trusted, reliable Danco brand, for more than 50 years, Danco has continued to develop products to support the novice DIYer to the most proficient Pro. If you are looking for “that” specific product to help facilitate any home improvement project, Danco is here for you to complete your next DIY project.

Dual Flush Valve Replacement Button

FLUIDMASTER
800P-001
2.50 X 3.25 X 10.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Genuine replacement buttons for Glacier Bay and other Dual Flush Toilets

Easy to install

Fit’s 3” Dual Flush Valve, 2-Piece toilets, including Glacier Bay, AquaSource, Project Source and more

Chrome finish

Designed for Tank Lid Mount only

Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve,Black

FLUIDMASTER
400A
15.74 X 15.53 X 12.94 Inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

fluidmaster400a anti-siphon toilet fill valve - fm400a

This is highly durable

This is manufactured in MEXICO

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank And Bowl Water Control, 1-Pack, Multicolor

FLUIDMASTER
400H-002-P10
3.35 X 4.33 X 13.19 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

Fluidmaster 507Ak Performax Universal High Performance 2-Inch Toilet Flush Valve Repair Kit With Gasket And Bolts

FLUIDMASTER
507AKP7
23.50 X 5.00 X 14.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

#TOP8

Fluidmaster 400A Toilet Tank Repair Fill Valve - 2 Pack

FLUIDMASTER
400A
3.00 X 3.00 X 12.50 Inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Capital Supply 9.92

Features

The No 1 selling fill valve in the world

No 1 solution to fix noisy toilets

Easy-to-install

Trusted by toilet manufacturers and professionals worldwide

EZ twist height adjusts from 9 to 14 in to fit most tanks

Fluidmaster 400Arhrkp10 Performax Universal High Performance All In One Repair Kit For 2-Inch Flush Valve Toilets, Easy Install

FLUIDMASTER
400ARHRKP10
4.52 X 7.67 X 13.77 Inches
1.49 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again

Fluidmaster 400Akrp10 400Akr Universal All In One Toilet Repair Kit, 2 Inches, Easy Install

FLUIDMASTER
400AKRP10
7.40 X 4.30 X 0.00 Inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

RESTORES OVERALL 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: 400A toilet fill valve adjusts easily from 9 – 14 inches, fits most 2-inch flush valve toilets, and is ideal for use in 1.6 to 3.5 gallons per flush toilets or larger

HIGH PERFORMANCE FLAPPER: PerforMAX high performance 2-inch adjustable water-saving toilet flapper maximizes water usage with each flush

EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again

Fluidmaster 5403 Water-Saving Long Life Toilet Flapper For 3-Inch Flush Valves & Korky 3060Bp Universal Toilet Flapper Replaces Most Large 3-Inch Flappers - Long Lasting Rubber - Made In Usa

FLUIDMASTER
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Product 1: Size: 3 Inch.LONG-LASTING DURABILITY: Toilet flapper with solid frame and kink-free chain replaces leaky, corroded flappers, preventing twisting, ghost flushing, and running toilet problems

Product 1: UNIVERSAL DESIGN: Adjustable flapper fits most 3-inch flush valve toilets and is ideal for use in high efficiency 1.28 to 1.6 gallons per flush toilets

Product 1: ADJUSTABLE TO SAVE WATER: Dial flapper adjusts for maximum flush efficiency and to save water

Product 1: SILICONE SEAL: Durable silicone seal lasts 10X longer than regular flappers and resists chlorine and hard water

Product 2: Size: Large (3”).ADJUSTS TO FIT ALL 3-INCH TOILET FLUSH VALVES found in newer, HET toilets including, American Standard, Aqua source, Crane, Eljer, Ferguson, Gerber, Glacier Bay, Jacuzzi, Kohler, Mansfield, Pegasus, TOTO and many more

Product 2: QUICKLY FIX running and leaking toilets and eliminate costly water waste

Product 2: KORKY INVENTED THE TOILET FLAPPER VALVE and is still the preferred brand by plumbers for superior quality and reliability

Product 2: MADE IN USA - Proudly made in America and backed by a 5 year warranty. Flapper made of chlorine resistant rubber

#TOP12

Fluidmaster 507Akp7 Performax Universal High Performance 2-Inch Toilet Flush Valve Repair Kit & 7530P8 Universal Better Than Wax Toilet Seal, Wax-Free Toilet Bowl Gasket Fits Any Drain

FLUIDMASTER
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Product 1: 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

Product 1: UNIVERSAL DESIGN: Fill valve replaces any two-piece toilet flush valve and is ideal for use in 3.5 gallons per flush toilets

Product 1: CORROSION RESISTANT: The 502 2-inch flapper features corrosion/hard water-resistant materials

Product 1: EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again

Product 2: WAX-FREE TOILET SEAL: Toilet seal gasket offers wax-free solution to installing a toilet on any flange without the mess

Product 2: UNIVERSAL GASKET: Stackable seal and slide-on spacer fits any 3-inch or 4-inch drain lines with no-rust brass bolts & hardware

Product 2: SECURE SEAL: Seals on uneven floors or over tile floors with recessed flanges; Plunging won't cause leaks

Product 2: EASY INSTALLATION: Requires no minimum temperature for installation and can be repositioned without damaging seal

Fluidmaster K-400H-021-P8 Performax 2-Inch Everything Toilet Repair Kit, Multicolor

FLUIDMASTER
K-400H-021-P8
5.51 X 7.48 X 14.37 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

The Everything Kit includes everything you need to fix your toilet in one trip and one purchase

Fluidmaster 502Cn3 Performax Universal Water-Saving Long Life Toilet Flapper For 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, 3 Pack, Red, 3 Pack

FLUIDMASTER
502CN3
10.40 X 2.56 X 5.12 Inches
0.46 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

LONG-LASTING DURABILITY: Toilet flapper 3-pack 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 pack features corrosion-resistant Microban material to prevent breakdown and leaks and is chlorine and hard water resistant

EASY INSTALLATION: Easily installs in 10 minutes or less to optimize flushing performance

Fluidmaster 400Carp5 Universal No Tank Removal Performax Kit, High Performance Toilet Fill Valve And Adjustable Flush Valve Repair Kit Including Flapper, For 2-Inch Toilet Flush Valves

FLUIDMASTER
400CARP5
17.00 X 7.00 X 14.00 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

Fluidmaster 507A 2-Inch Universal Toilet Flush Valve And Flapper Replacement

FLUIDMASTER
507AP7
4.00 X 5.00 X 13.00 Inches
0.54 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
inconsupply 9.79

Features

Universal design fits most 2” flush valve tanks

Easy-to-Install

Repairs common tank to bowl leak problems

Durable build, featuring corrosive resistant materials

Built in antimicrobials fight bacteria for long lasting protection

Includes 501 Universal Flapper with solid frame for best seal

Best for toilets that use 3.5+ gallons per flush

5 year warranty

Fluidmaster 7110M-007-P10 Green Toilet Tool

FLUIDMASTER
7110M-007-P10
2.17 X 4.92 X 8.94 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Fluidmaster’s universal install and uninstall toilet tool makes any toilet repair job simple

Easy to use, designed to work with most any toilet bolts

Innovative design for use with all brands and a variety of toilet parts

Green Tool works on fill valve nut, and toilet bolts

Eliminate the guesswork during installation, uninstall, or repair, Made from durable and tested hard plastic for a long lifespan, and corrosion resistance, 1 year warranty

Fluidmaster 550Dfrk-3 Duoflush Complete Fill And Dual Flush Conversion System

FLUIDMASTER
550DFRK-3
4.30 X 8.10 X 12.40 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Convert your existing 2” flush valve toilet to Dual Flush technology

Save water & money, uses up to 45% less water

Retrofits to any 2” flush valve toilet, 1.6 GPF and pre 1994 3.5+ gallon per flush models

Easy-to-install and fully adjustable for a wide range of settings, without removing the valve

Complete fill & dual flush conversion system

Full and half flush, Dual Action toilet flush lever included

Replace noisy and slow filling inefficient models

PerforMAX High Performance Fill Valve included for 2x greater refill rate

#TOP19

Fluidmaster 400C Fill Valve And 2 Inch Flapper Toilet Repair Kit

FLUIDMASTER
400CRP14
16.00 X 8.00 X 3.00 inches
0.45 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
LBR Shop 4.24

Features

Features the proven 400A anti-siphon toilet fill valve and rugged 501 flapper

High Quality and durable toilet fill valve

This product has a 5 year warranty and is the solution to fix a noisy and running toilet

Solid frame flapper for a secure seal

Ideal product for use in 3.5 gallons per flush toilets or larger

EZ twist height adjustment to fit most tanks

Fluidmaster Iuyehduh 703Ap4 Specialty Toilet Fill Valve For Glacier Bay And Niagara Conservation Flapperless Toilets 2 Pack

FLUIDMASTER
745839830632
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ADVENTURER'S BAG 9.90

Features

A direct replacement for Glacier Bay & Niagara Flapperless Toilets

Easy-to-install, instructions included

Increase your Glacier Bay / Niagara refill speed

Restore & optimize your toilet to factory performance

Replace old or inefficient fill valves with this high-quality replacement part

Fluidmaster, Inc 5100 Toilet Tank Ball And Rod Toilet Tank Ball

FLUIDMASTER
5100
4.75 X 2.25 X 6.75 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Installs easily

Fits all brands

1-Year warranty

#TOP22

Fluidmaster

FLUIDMASTER
400A
75.00 X 3.00 X 12.50 Inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Dealacious 8.67

Features

Fluidmaster

400A

25

NEW

15.75

#TOP23
Best For Dual

Fluidmaster 550Dfr-1 Duoflush Dual Flush Conversion Valve

FLUIDMASTER
550DFR-1
22.88 X 6.88 X 11.88 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MaxWarehouse 9.82

Features

Uses up to 45% less water

Retrofits to any 2 inch toilet

Fully adjustable for a wide range of settings

Zurn P6000-Ecr-Ws Aquaflush Closet Repair Kit 3.5 Gal

ZURN
P6000-ECR-WS
3.00 X 3.00 X 3.00 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Items Inclued: valve repair kit, handle repair kit, vacuum breaker repair kit

#TOP25

Fluidmaster Pro57 Replacement Part

EASTMAN
PRO57
12.90 X 4.50 X 3.20 Inches
0.51 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Buyplumbingdirect 5.71

Features

✅DESIGN- Made of durable materials that resist corrosion. The Fluidmaster Pro Series Flush Valve will fit on most standard toilets.

✅FUNCTIONALITY- Holds the air and water inside until the user flushes the toilet.

✅QUALITY- This flush valve includes PRO55 adjustable flapper w/float to optimize water savings and performance.

✅EASY INSTALLATION- This replacement part is easy to install.

✅COMPLETE- Includes flapper closet flush valve. Flush valve W/flapper. Replacement part.

Top 10 toilet flush valves fluidmaster Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Fluidmaster 22
Danco 1
Eastman 1
Zurn 1

Top 10 toilet flush valves fluidmaster Brands Pie Chart


We've carried out a comprehensive analysis of 100,699 reviews on toilet flush valves fluidmaster, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select toilet flush valves fluidmaster priced around $16.75, with top brands including zurn, fluidmaster, danco, vallvater, winzo, kohler and hibbent and eastman

Our team of expert editors reviewed these high-quality items and handpicked the top 25 toilet flush valves fluidmaster for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the home improvement category. These include amazon.com, procuru supply, amazon warehouse, cosignelectronics, vallvater, mulin, moofin, inconsupply and efaucets and intelligent3h us .

We are dedicated to assisting our users in finding the right fixtures Products based on their needs, saving them considerable time when choosing which toilet flush valves fluidmaster to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.