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The FLUIDMASTER INC 510K-001-P10 is a replacement flush valve seal engineered for specialty flush valve toilets, including Kohler Aqua Piston and American Standard Champion 3 models. Constructed from silicone rather than standard rubber, this seal resists chlorine and hard water conditions that cause conventional seals to degrade prematurely. The silicone material is rated to last up to 10 times longer than standard rubber seals. Each seal is designed as a direct OEM-style replacement, ensuring a precise fit and a secure seal without modification. This package contains 10 seals, making it well suited for service contractors who need to keep stock on hand for routine toilet leak repairs.
This seal addresses one of the most common causes of running toilets and phantom flushes in residential and light commercial settings: a worn or degraded flush valve seal. It is the appropriate fix when water is leaking from the flush valve seat into the bowl, causing continuous water loss. The 510K-001-P10 is intended for plumbers and service technicians performing routine toilet maintenance or leak diagnostics on compatible specialty flush valve toilets. The 10-unit pack supports repeat service calls without requiring a separate supply order for each visit.
Designed as a direct OEM-style replacement seal for Kohler Aqua Piston and American Standard Champion 3 specialty flush valve toilets.
Installation is performed by a licensed plumber or experienced service technician. Shut off the water supply to the toilet at the stop valve and flush to drain the tank before beginning work. Remove the existing flush valve seal and seat as needed, then press the replacement seal into place according to the valve manufacturer's instructions. Restore water supply and verify the seal is leak-free before returning the fixture to service.
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