Performa CV Logix is a non-corrosive, UV-resistant valve with fiber-reinforced polymer valve body for superior strength and durability. Designed for single or multiple tank systems, its backwash capabilities accommodate softener tanks up to 21″ and filter up to 18″ in diameter. Moreover, a time-tested flapper provides a frictionless sealing for longer service life and the programming, stored in memory, will not be lost due to power outages.