Viper Plumbing Flapper, Blue

The Gerber soft flapper is a direct replacement part designed for use in high-efficiency toilet models requiring a 1.28 gal-per-flush (gpf) flush valve. Constructed from flexible rubber, it provides a reliable seal in the tank to help prevent water leakage and ensure consistent flush performance. Easy to install without special tools, this flapper restores proper flushing action in compatible Gerber toilets such as Viper, Avalanche and similar models. Its durable design withstands repeated use and helps maintain efficient operation over time, reducing the need for frequent maintenance or repair.