Camcos 3/4" Temperature and Pressure Valve with 4" Probe will help protect your RV or home water heater from excessive temperature and water pressure. It's factory set at 150 PSI and 210F. It features epoxy-coated probe to prevent corrosion buildup. Specifications•End Size: 3/4" NPT connection•Temperature: Factory Set at 150 PSI and 210F•Probe Length: 4 Inch•Material: Brass Body with Stainless Spring 4 Inch Probe Length Corrosion-Resistant Metal Valves With No Gaskets & Epoxy-Coated Probes | Camco Water Heater Temperature and Pressure Relief Valve, 3/4" Valve, 4" Probe, 150 PSI