Urinal flush-valve piston repair parts replace piston-type assemblies within a urinal flush valve (flushometer) to restore proper flushing and sealing. The piston assembly regulates pressure inside the valve using a cylinder with a sliding cup seal that seals the valve seat after each flush. Signs that the piston assembly may need replacement or repair include a urinal that won't flush, keeps running, or has a flush that's too short or long. These piston repair parts are kits that include a piston, cup seal, and other parts of the assembly that may need replacing to complete the repair.

Piston Assembly