Webstone's new "Isolator EXP" service valves are so innovative that they have a patent pending. This valve set contains an inlet and outlet valve that allows for one-man full port diagnostic testing, cleaning or draining of the system and heater with quarter-turn ball valve ease. The "EXP" also allows for installation of a heater in minutes with its one-piece design and union connections. Webstone.
Web Exclusive-Webstone Tankless Water Heater Service Valves
June 8, 2004