3/4" Female NPT Inlet X 3/4" Female NPT Outlet, Set at 45 PSI, 740,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 3/4" Female NPT Outlet, Set at 50 PSI, 805,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Female NPT Inlet X 3/4" Female NPT Outlet, Set at 55 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 3/4" Female NPT Outlet, Set at 60 PSI, 935,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 20 PSI, 325,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 25 PSI, 375,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 30 PSI, 425,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 35 PSI, 475,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 40 PSI, 525,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve

3/4" Male NPT Inlet X 3/4" Female NPT Outlet, Set at 45 PSI, 575,000 btu Capacity, 250 degrees F Maximum Temperature Service, ASME Section IV Polished Chrome Hot Water Pressure Relief Valve