White molded plastic. The original flapper tank ball. Readily fits most conventional flush valves, stops costly leaks and provides long-lasting service. A proven product. An early-closing device.
Water enters a hole in the end cap and forces air out of the bleed hole.
When filled with water the flapper closes over the tank outlet. 5 end-cap adjustments to optimize water savings and deliver a complete flush. Ask about volume pricing. Fits most toilet tanks. Anti-siphon design prevents contaminnation of fresh water supply.