10 Best Toilet Flapper Kit of December 2025

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

Updated On Dec 2025

1,665 Reviews Studied

By Customer Ratings

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Next by Danco HYR451T HyrdroRight Universal Water-Saving Toilet Repair Kit with Dual Flush Valve, Lever Handle, White Read Review

  • WATER-SAVING DUAL FLUSH TOILET REPAIR KIT: Easily converts a standard toilet into a 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 LIGHT-TOUCH LEVER UNIQUE SPLIT HANDLE DESIGN: The short center lever 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 complete push lever at end is the Full Flush that 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.
  • COMPLETE KIT: Combines two products that together will increase your toilet's efficiency: HYR271 Dual Flush Valve and HC630 HydroClean fill valve.
  • NO WARP SEAL: Permafit silicone seal is Chlorine and chemical resistant and will not warp.

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Korky 100BP Ultra High Performance Flapper Fits Most Toilets - Long Lasting Rubber - Easy to Install - Made in USA, Smal... Read Review

  • UNIVERSAL FLAPPER: The 2" universal flapper adjusts to fit flush valves in HET toilets & the flexible long lasting rubber creates a tight seal.
  • FOR LEAKING & RUNNING TOILETS: Save on expensive water waste with this large toilet flapper with a universal & adjustable design that fits standard flush valves & newer toilet models. No tools required.
  • LONG LASTING CHLORAZONE red rubber resists chlorine, bacteria, city water treatment, hard & well water. This toilet part replacement includes the universal adjustable flapper & stainless steel chain.
  • 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.

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Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid F... Read Review

  • 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
  • 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

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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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Korky 2003BP EasyFix Toilet Flush Valve and Flapper Repair Kit - Repairs Flush Valves and Flappers - Easy to Install - M... Read Review

  • FLAPPER & FLUSH VALVE KIT: The Korky 2" EasyFix Flush Valve Repair Kit is designed to repair corrosion or deposits on plastic and brass flush valve seats.
  • REPAIR TOILET CORROSION: The kit includes a Korky Plus flapper, a plastic flush valve seat and silicone sealant to repair corroded flush valve seats without removing your toilet tank.
  • LONG LASTING CHLORAZONE red rubber resists chlorine, bacteria, city water treatment, hard & well water.
  • 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.

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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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Korky 54BP Toilet Tank Flapper - Easy to Install - Made in USA,Black Read Review

  • TOILET TANK FLAPPER QUICKLY FIXES running and leaking toilets and eliminate costly water waste.
  • KORKY INVENTED THE TOILET TANK FLAPPER and is still the preferred brand by plumbers for superior quality and reliability.
  • TOILET FLAPPER MADE IN USA: Proudly made in America and backed by a 1 year manufacturer warranty.
  • TOILET FLAPPER VALVE MADE OF FLEXIBLE RUBBER for a tight seal on most flush valves.
  • EASY TO INSTALL, the 54BP toilet parts include: (1) Toilet Tank Flapper and (1) Stainless Steel Chain.

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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 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit with Gasket and Bolts Read Review

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

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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