Durable replacement membrane gasket for toilet tank fill valves — restores a reliable seal and stops leaks Key benefits Stops leaks and reduces water waste by restoring a tight seal on the tank inlet fill valve. Simple DIY replacement that saves time and service costs — no special tools required. Durable construction for long-lasting performance in standard toilet tank environments. Specifications Outer diameter: 28 mm Depth: 15 mm Compatibility: Designed to fit most side and bottom inlet (fill) valves Material: Made from durable materials for reliable sealing and wear resistance Quantity options: Available as 1 piece or 2 pieces What makes it useful Precise dimensions (28 mm x 15 mm) make it easy to identify and match with existing inlet valves. Flexible and resilient sealing surface conforms to valve surfaces to prevent drips and slow leaks. Quick swap replacement — simply shut off the water, remove the old gasket, and install the new one. Easy installation (3 steps) 1. Turn off the water supply to the toilet. 2. Remove the old membrane gasket from the fill valve. 3. Press the new gasket into place and restore the water supply; check for a tight seal. Typical applications Replacing a worn gasket on a toilet with a side-mounted fill valve to stop continuous running or slow leaks. Repairing a bottom-mounted inlet valve seal in household bathrooms to restore proper tank filling. Keeping a spare gasket on hand for maintenance in rental properties, hotels, or facilities management. Ordering details Choose 1 piece for a single repair or 2 pieces for a spare or multi-toilet maintenance kit. Reliable, easy-to-install replacement that restores effective sealing on most side and bottom tank inlet valves.