255 Logix is a non-corrosive, UV-resistant valve with fiber-reinforced polymer valve body for superior strength and durability. Designed with double backwash for reduced hardness leakage, its capabilities accommodate softener tanks up to 14" and filter up to 10" 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.