3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 50 PSI, 697,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 55 PSI, 752,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 60 PSI, 807,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 65 PSI, 862,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 70 PSI, 917,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 75 PSI, 972,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 80 PSI, 1,027,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 3/4" Female NPT Outlet, Set at 20 PSI, 377,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 3/4" Female NPT Outlet, Set at 25 PSI, 427,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 3/4" Female NPT Outlet, Set at 30 PSI, 477,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve