3/4" Female NPT Inlet X 1" Female NPT Outlet, Set at 20 PSI, 545,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 1" Female NPT Outlet, Set at 25 PSI, 625,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 1" Female NPT Outlet, Set at 30 PSI, 710,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 1" Female NPT Outlet, Set at 35 PSI, 790,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 1" Female NPT Outlet, Set at 40 PSI, 870,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 1" Female NPT Outlet, Set at 50 PSI, 1,035,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 1" Female NPT Outlet, Set at 20 PSI, 545,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 1" Female NPT Outlet, Set at 25 PSI, 625,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 1" Female NPT Outlet, Set at 30 PSI, 710,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 1" Female NPT Outlet, Set at 35 PSI, 790,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Brass Hot Water Pressure Relief Valve