【Stop Running Toilets And Hidden Leaks】A slow leak or running toilet can waste hundreds of gallons of water every month. This flush valve silicone seal gasket creates a tight barrier between the flush valve and tank to help stop constant refilling, ghost flushing and quiet drips so you can fix running toilets and reduce water waste 【Compatible With Toto THU Series Flush Valves】Toilet flush valve gasket compatible with Toto THU440-A, compatible with Toto THU451, compatible with Toto THU826-A, compatible with Toto THU407 and compatible with Toto 10A-A flush valve assemblies. Also fits compatible Hi-Flow square style valves 415042, 415043, 415047 and 415056 that use the same style flush valve seal. Always compare your existing seal and valve number before ordering 【Sized For A Proper Toilet Flush Valve Seal】Each toilet seal ring measures about 81 mm outer diameter (approximately 3 3/16 in) and 54 mm inner diameter (approximately 2 1/8 in), and is sized to sit snugly in the groove of the compatible with Toto flush valve base, replacing bubbled, hardened or flattened gaskets. It restores a reliable toilet flush valve seal to help improve flush performance and keep the tank at the correct water level instead of slowly draining down. 【Durable Silicone Gasket Construction】Made from high quality, flexible silicone instead of ordinary rubber, this silicone flush valve seal gasket maintains its shape and elasticity through thousands of flushes. The smooth sealing surface helps resist bubbles and deformation that can develop on older seals and lead to invisible leaks between the tank and valve 【Easy DIY Repair – 4 Pack Value】This 4 pack of toilet flush valve gaskets is ideal for homes with multiple compatible with Toto toilets or for keeping spare replacement parts on hand. Most homeowners can complete the repair in minutes by shutting off the water, draining the tank, removing the flush valve, swapping the old gasket for the new silicone seal and reinstalling, with no special tools or plumber visit required A toilet that keeps running or refills every few minutes usually has a sealing problem inside the tank, not a major plumbing failure. In many systems that use a toilet flush valve compatible with Toto THU series, the real issue is a worn flush valve seal at the base of the tower. When this small toilet gasket hardens, flattens or develops bubbles, it can no longer act as a reliable toilet seal ring, and water seeps slowly past the valve into the bowl, driving up your bill without obvious dripping or noise. This 4 pack of silicone flush valve seal gaskets is designed as a direct replacement for the factory toilet flush valve gasket used in popular valves compatible with Toto THU440-A, compatible with Toto THU451, compatible with Toto THU826-A, compatible with Toto THU407 and compatible with Toto 10A-A, as well as compatible Hi-Flow square style valves 415042, 415043, 415047 and 415056. It is an ideal choice when you need dependable toilet flush valve replacement parts compatible with Toto THU without buying an entire new flush tower or tank kit, and fits perfectly into a typical compatible with Toto toilet replacement parts or maintenance set. Each ring functions as a compact toilet valve seal and toilet tank seal, sitting between the flush valve body and the bottom of the tank to create a watertight connection. The gasket is sized to match the original toilet tank gasket and toilet flush valve seal ring compatible with Toto, so it can be used to replace bubbled or cracked seals that cause weak flushing, tanks that will not stay full, or water slowly returning from the tank into the bowl. By restoring a proper toilet flush seal ring, you can often bring a “problem toilet” back to normal operation without touching the fill valve, handle or other hardware. Unlike many older rubber rings, this toilet seal rings silicone toilet gasket fit for compatible with Toto THU440-A and other THU assemblies is molded from flexible silicone. That material resists compression set and surface bubbling, helping the toilet flush valve silicone seal stay soft and conform to the valve base over thousands of flushes. It is a durable option to keep on hand as replacement parts for compatible with Toto toilet flush valves or as part of a broader compatible with Toto toilet parts assortment for homeowners and maintenance staff. With four seals in every pack, you can service multiple compatible with Toto toilets in the same home, replace several aging seals at once, or keep extras in your toolbox as toilet flush valve replacement parts compatible with Toto for future repairs. Most DIY users can perform the job in just a few steps: shut off the supply, drain the tank, lift out the flush valve, swap the old flush valve seal gasket for the new silicone ring and reinstall. This simple upgrade to the toilet flush valve and gasket can stop running toilets, prevent leaks and extend the life of your existing valve and other compatible with Toto toile