Flexible rubber toilet gaskets — pack of 2, red, designed to replace 5.1 cm flush valve seals (part number 210) Key benefits Stops running and leaking toilets: restores a tight seal at the flush valve to eliminate phantom flushing and water waste. Saves money and time: quick, low-cost repair that avoids costly professional service or replacing the entire flush assembly. Durable, reliable performance: made from flexible rubber for a secure, long-lasting seal that supports proper flushing. What you get Quantity: 2 WC gaskets Size: fits 5.1 cm flush valve seals Material: rubber Color: red Compatible: intended to replace common 5.1 cm flush valve seals (part number 210) Why it works Flexible rubber conforms to the flush valve seat for a tight seal that prevents leaks. Simple, direct replacement of worn or hardened seals restores valve performance and reduces continuous water flow. Typical applications Home bathroom repair: replace a degraded seal to stop a toilet that runs intermittently after flushing. Rental or property maintenance: fast on-site fix to eliminate wasteful leaks and reduce utility costs between tenant turnovers. Office or small facility upkeep: quick replacement during routine restroom maintenance to restore proper flushing. Quick installation notes Turn off water supply and drain the tank. Remove the old seal and clean the valve seating area. Press the new gasket into place and reassemble the tank components. Restore water and test flush for a secure seal. Material and performance details Made of rubber for flexibility and longevity. Provides a tight fit to prevent leaking and ensure correct flush action. This pack provides two replacement gaskets so you have a spare or can service two toilets.