5-Pack B-108288 Duckbill Valve Replacement | Compatible with Sloan Flushmate 503 503H 504 Series | Toilet Check Valve for Pressure-Assist Tanks

Wide Compatibility: Designed as a direct replacement for the B-108288 model. Compatible with Sloan Flushmate 503, 503H, and 504 series pressure-assisted flush systems, as well as other units that use this specific valve type One-Way Valve Function: Functions as a check valve and air inducer within the flush tank. Supports air circulation and pressure stabilization for pressure-assisted flushing Durable Rubber Construction: Made from flexible, high-grade rubber that retains elasticity over time. Offers resistance to wear and prolonged water exposure Replaces Worn Valves: Replaces worn or hardened duckbill valves that may cause weak flushes or incomplete bowl clearing. Supports the intended flush performance of the pressure-assist system 5-Pack Value Set: Includes five duckbill valves, providing spares for future maintenance or enough to service multiple units