Gerber Plumbing Fixtures products earn trust through enduring performance and reliability, and replacement parts are no exception. Gerber offers a top-mount, chrome-plated, plastic dual flush button designed for our Viper dual flush toilets. The button features two sides; one for a full flush volume and one for a lower flush volume to optimize water savings. The buttons require low activation pressure for ease of use. The flush actuator has reliable retraction, for a consistent performance.