10 Best Toilet Flush Kit of August 2025

List of Top Rated Toilet Flush Kit from thousands of customer reviews & feedback.

Updated On Aug 2025

2,999 Reviews Studied

By Customer Ratings

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Fluidmaster 400CRP14 Universal Toilet Fill Valve and Flapper Repair Kit for 2-Inch Flush Valves, Easy Install Read Review

  • 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
  • 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
  • 5-YEAR WARRANTY: This product has a 5-year warranty

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Rust-Oleum 400AKRP10 Toilet Tank Repair Kit, 2 inches, Assorted Colors Read Review

  • 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
  • 5-YEAR WARRANTY: This product has a 5-year warranty

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Next by Danco HYR460 Lever Handle Replacement HyrdroRight Universal Water-Saving Toilet Repair Kit with Dual Flush Valve... Read Review

  • WATER-SAVING DUAL FLUSH TOILET REPAIR KIT: Easily converts a standard toilet into a 2-button, dual flush toilet that saves water by reducing the amount of water used with each flush.
  • ELIMINATES TOILET LEAKS: Eliminates common leaky toilet problems due to a worn-out flapper, handle or faulty flapper chain.
  • DUAL-FLUSH HANDLE: One button is the Quick Flush setting that uses significantly lower water volumes for liquids and paper - the setting needed 4 out of 5 times. The second Full Flush button uses the normal amount of water for solids.
  • COMPATIBILITY: Works with standard 2 in. flush valves and requires 10-inch minimum clearance from highest point of the flush valve opening to the inside of the tank lid. Not compatible with Mansfield toilets.
  • HASSLE-FREE INSTALLATION: Drop-in installation without tools in 5 to 10 minutes - tank removal not required.
  • DETECTS LEAKS: Detects leaks and signals when a leak is found.
  • CALIBRATION: The Total Repair Kit can be calibrated to adjust the exact amount of water needed, saves water.
  • CLEANS TOILET TANK: Jets clean toilet tank and parts with every flush.
  • COMPLETE KIT: Combines two products that together will increase your toilet's efficiency: HYR270 Dual Flush Valve and HC660 HydroClean fill valve.
  • NO WARP SEAL: Permafit silicone seal is Chlorine and chemical resistant and will not warp.

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Fluidmaster 400ARHRKP10 PerforMAX Universal High Performance All in One Repair Kit for 2-Inch Flush Valve Toilets, Easy... Read Review

  • 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
  • 7-YEAR WARRANTY: This product has a 7-year warranty

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Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve, Easy Install Read Review

  • ENHANCES YOUR TOILET’S POWER: Toilet fill valve replaces old, inefficient valves and eliminates noise while generating 2X greater refill rates than standard fill valve designs
  • UNIVERSAL DESIGN: Fill valve adjusts easily from 10 – 15 inches and is ideal for use in high efficiency 1.28 to 1.6 gallons per flush toilets
  • ADJUSTABLE ROLLER CLAMP: Water-saving roller clamp lets you regulate the fill level in the bowl to help save water and money
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
  • 7-YEAR WARRANTY: This product has a 7-year warranty

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KOHLER GENUINE PART 1188999 2" Toilet Canister Flush Valve Kit Read Review

  • KOHLER GENUINE PART
  • 3" canister with a 2" outlet harnesses the natural force of gravity and optimizes flush performance
  • Compatible with KOHLER Cimarron tank model number K-4421
  • Look inside the back wall of the toilet tank to identify tank model number
  • The number printed on the canister is a component number, which is a component of this kit.

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Techo Touchless Toilet Flush Kit with 8” Sensor Range, Adjustable Sensor Range and Flush Time, Automatic Motion Sensor T... Read Review

  • EFFORTLESS UPGRADE: Upgrading into automatic toliet without replacing the current toilet or toilet seat, AND the manual handle will be still working as a backup. Automatically flush when hands waving over the detection range. A more sanitary way to flush than using the handle.
  • RELIABLE MOTION SENSOR, ADJUSTABLE SENSING RANGE & FLUSH TIME: Minimizing possibilty of phantom flash, only be activated when sensing motions within the detection range. Unaffected by the external environment. Easily adjust the sensor range and flush time with a screwdriver. Sensor range adjustment range: (0-8”). Flush time adjustment range: (1-6s).
  • EASY TO INSTALL & REPLACE BATTERIES: Simple installation taking most people less than 20 minutes. External battery design makes it easier to replace batteries.
  • LONG LIFESPAN: The controller last for over 200,000 flushes in normal use and 4 AA batteries (included) last 30,000 flushes.
  • RIMINDERS: The kit DOESN'T FIT ALL TOILET TYPES! Only fits with most flapper and canister toilets, not for dual-flush/ ballcock valve/ top-mount flush and pressure-assist toilets! Contact us at once if you are not sure whether our product fit your toilets! Ideal for toddlers and elderly, useful aid for people with disabilities and a convenient helper in the night! Any question with our product, please contact us!!

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Next by Danco FLT231T Alternative Toilet Tank Flapper Replacement, Black Read Review

  • ELIMINATES LEAKY TOILET FLAPPER: Engineered to eliminate the most common toilet problem of a leaky flapper by it's robust design
  • COMPATIBILITY: Easily adjust to work with newer and older toilets. Fits most front, side, and angle mount toilets with standard 2" to 2-1/2" flush valves. Does not fit Mansfield toilets.
  • STOPS OVERFLOWS: Toilet handle activates spring loaded S.T.O.P. Technology to immediately prevent overflows
  • NO-TOOL INSTALLATION: Drop-in installation requires no tools or tank removal needed
  • DURABLE MATERIAL: Permafit silicone seal is chemical resistant (avoids warping) and a steel cable stronger than a normal flapper chain

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Fluidmaster 555CRP8 Universal PerforMAX 5 Minute Toilet Flush Valve Repair Kit Read Review

  • Universal Design, fast and easy-to-install
  • Peel and Stick design eliminates messy glue, with no tank removal
  • PerforMAX Adjustable Water-Saving Flapper included
  • Replaces inefficient toilet flush valve designs
  • Fix worn, leaky toilet flapper designs
  • Save on water and money
  • Durable build with corrosive resistant materials
  • 5 year warranty
  • 2” flush valve replacement kit, from 1.28 HET to 3.5 gallon per flush designs
  • Limit one (1) per order
  • Returns will not be honored on this closeout item

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Next by Danco HYR271T Hydroright Dual Flush Valve And Lever Handle, White Read Review

  • WATER-SAVING TOILET FLUSH VALVE: The HydroRight replacement toilet flush valve easily converts most standard toilets into a dual-flush water-saving toilet which uses up to 70% less water for liquids and paper.
  • REPAIRS COMMON LEAKY TOILET ISSUES: Eliminates the most common problems in toilets that cause leaks as this flush valve replaces a worn-out toilet flapper, chain and handle which can often break.
  • LEVER STYLE HANDLE: Includes lever style split handle flush activator that gives you a choice to use the quick-flush setting which uses less water volume for liquids and paper or the full-flush setting which uses the normal full flush water volume to accommodate solids.
  • COMPATIBILITY: Fits 1.6 to 3.5+ GPF (gallons per flush) standard 2-piece toilets with 2 in. flush valve and requires 10-inch minimum clearance from highest point of the flush valve opening to the inside of the tank lid; Note: Will NOT FIT Mansfield toilets and is not compatible
  • EASY NO-TOOLS REQUIRED INSTALLATION: Simple Drop-in installation without tools in less than 20 minutes with NO TANK REMOVAL required.
  • BUILT TO LAST: Constructed of durable plastic and the Perma fit silicone seal is chemical resistant and will not warp.