10 Best Toilet Flush Valve of December 2025

• Features the proven 400A anti-siphon toilet fill valve
• 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
• Ideal product for use in 3.5 gallons per flush toilets or larger
• Includes the 400A Fill Valve and the 501 Flapper
• The 501 Flapper has Microban that prevents breakdown due to bacteria
• The 501 Flapper is chlorine-resistant and has a solid frame that prevents it from twisting
• Note: This product is designed to fit toilets with 2″ flush valves

Fluidmaster

• Automatic, hands-free sensor operation
• Ideal for installation under a grab bar in accordance with ADA clearance requirements
• Angled sensor delivers reliable flush even with toilet seat in raised position
• Optional 24 hour sanitary flush
• Electronic courtesy flush button

American Standard

• ADJUSTS TO FIT MOST 3-INCH FLUSH VALVES found in newer, HET toilets including, American Standard, Aquasource, Crane, Eljer, Ferguson, Gerber, Glacier Bay, Jacuzzi, Mansfield, Pegasus, TOTO and many more
• FIXES ALL COMMON FILL VALVE AND FLAPPER PROBLEMS, including, running, noisy, slow/weak or no refilling toilets
• MADE IN USA - Proudly made in America and backed by a 5 year
• EXCLUSIVE LONGEST LASTING red rubber resists chlorine, bacteria, city water treatment, hard water, and well water
• KORKY INVENTED THE FLAPPER and is still the preferred brand by plumbers for superior quality and reliability
• FLAPPER MADE OF FLEXIBLE RUBBER for a tight seal on most flush valves
• EASY TO INSTALL, the 5030BP includes: (1) flush valve, (1) 3-in flapper, (1) Tank-to-bowl gasket, (1) Set of hardware and (1) Instructions

Korky

• Everything needed to make your toilet run like new!
• Easy-to-install, simple instructions included
• Universal design fits most toilet models
• Fits 2” flush valve toilets
• 400A toilet fill valve adjusts easily from 9” – 14”
• PerforMAX 2” Adjustable water-saving toilet flapper included
• Replaces inefficient fill and flush valves, leaky flappers, and broken toilet handles
• 5-year warranty
• Engineered to restore or increase overall toilet performance

Fluidmaster

• Kohler genuine part
• Canister flush valve kit for Kohler Cimarron toilets
• 3 inches canister with a 3 inches outlet
• Compatible with Kohler Cimarron tank model number K 4634
• Look inside the back wall of the toilet tank to identify tank model number. Material: Plastic
• Complete assembly with tank to bowl gasket. Inlet diameter: 0.5 inches

Kohler

• Easy adjustable overflow tube eliminates the need for cutting and can be set to meet OEM specifications
• 3-Inch
• 5 year warranty
• Adjustable

Fluidmaster

• This flush valve can also be used to retrofit the original line of Champion toilets.
• It is not eccomended to use an in-tank toilet cleaning product with this flush valve for longevity of the gaskets.

American Standard

• Quick, Easy to install
• Replaces any 2" flush valve in a two-piece toilet
• Saves water and stops leaks at the drain
• Includes adjustable flapper for efficient, powerful flushes every time
• Includes bolts and gasket

Fluidmaster

• Fix noisy, slow filling valves with the quietest, most powerful toilet fill valve on the market!
• Easy-to-install PerforMAX design
• Universal fitting most toilet models
• Height adjusts easily between 10” – 15”
• Adjustable roller-clamp controls water usage
• Replaces outdated, inefficient, or noisy fill valve designs
• 7 year warranty
• PerforMAX technology achieves 2X greater refill rate, while saving water usage
• Replaces outdated, inefficient, or noisy fill valve designs
• 7 year warranty
• PerforMAX technology achieves 2X greater refill rate, while saving water usage

Fluidmaster

• Kohler genuine part
• Silent fill provides a gracious experience by filling the tank quietly
• Multiple fill rate inserts are provided to optimize performance and conserve water
• Adjustable to accommodate any height. Never use an abrasive material such as a brush or scouring pad to clean surfaces
• Confirm shank color to determine correct part; If black, use this part and if grey, use GP1138930
• Cap color may vary

Kohler