The Isolator - EXPThe original tankless water heater service valves. Heavy duty forged brass with full port main flow channel and drain. Available in threaded, sweat and push-on connections. Certified to NSF 61-8and NSF 61-9.
The Isolator - E2Compact version of the original EXP. Installs in 4 1/4" of space. Packaged with pressure relief valve for residential use (200,000 BTU). Available in threaded and sweat connections. Conforms to NSF 61-8.
The Isolator - E3Compact version of the original EXP with an adjustable pressure relief valve outlet for residential use (200,00 BTU). Available in threaded and sweat connections. Conforms to NSF 61-8.
