Toilet inlet valve bottomentry rubber washer — replacement diaphragm for float/flush valves Key benefits Stops tank leaks and prevents continuous running by restoring a reliable seal at the bottomentry inlet/float valve. Simple, fast replacement eliminates the need to the entire valve assembly — saves time and cost. Durable rubber construction resists deformation and repeated cycling for dependable longterm performance. What it does Functions as the diaphragm/washer for bottomentry inlet valves and float valves in toilet tanks. Creates a watertight seal between the inlet/flush valve components and the tank, ensuring correct fill and shutoff. Compatibility and fit Designed for bottomentry inlet/float valve configurations commonly found in vintage and older toilet tanks. Versatile replacement part suitable for a wide range of vintage toilet tanks and compatible flush valve systems that use a rubber diaphragm/washer (confirm fit with your valve model before installation). Material and performance Made from resilient rubber to maintain sealing performance under normal tank pressures and repeated valve action. Provides consistent sealing to prevent drip or overflowrelated water waste and avoid continuous fill cycles. Installation and use Straightforward swap: remove the old washer/diaphragm and fit the rubber washer into the valve housing; typical serviceable task for a DIY homeowner or professional plumber. No special tools required in most cases; works with bottomentry float/inlet valve assemblies. Practical scenarios a hardened or cracked washer to stop a toilet tank that won't stop running. Restore proper fill operation during restoration of a vintage toilet without replacing original valve hardware. Keep a spare washer in a maintenance kit for rental properties, hotels, or facility management to enable quick repairs. Includes One rubber diaphragm/washer for bottomentry toilet inlet/float valves. Note: Verify that your toilet uses a bottomentry inlet/float valve diaphragm before to ensure compatibility.