PRODUCT FEATURES These General Pump thermal relief valves protect your pump from heat build up while in the bypass mode. Max pressure is 100 PSI. Thread size is 1/2" mpt. Please choose temperature opening. Reviews Featured Products General Pump Safety Relief Valve $25.35 Choose Options Giant Pressure Safety Relief Valve $9.68 $13.83 Choose Options General Pump GP Hose Guide For DHRA50300 $94.85 Add to Cart General Pump GP Hose Guide For DHRA50450 $94.50 Add to Cart