21cm Dual Flush Cistern Valve Kit

A functional and reliable flush valve replacement kit sized at 21 cm for split-cistern toilets. Comprises a robust ABS drain button and a high-density rubber sealing ring. The ABS housing and actuator lever ensure stable, tactile feedback and long-cycle durability, while the rubber seal maintains consistent compressive force over time without drying out or losing resilience. Restores dependable flush initiation and full valve closure, resolving problems such as intermittent flushing, slow refill cycles, or water seepage into the bowl. Compatible with standard UK/EU two-piece toilet tanks when correctly sized — fits without modification and supports both full and reduced-volume flush modes.