Camco’s 1/2" Temperature and Pressure Valve with 4" Probe will help protect your RV water heater from excessive temperature and water pressure. It's factory set at 150 PSI and crafted with no gaskets and an epoxy-coated probe to prevent corrosion buildup. Protects water heaters from excessive water temperatures and pressure Resistant to corrosion Factory preset to 150 psi and 210 degrees Fahrenheit 1/2" - 14 NPT male inlet; 1/2" - 14 NPT female outlet with 4" probe CSA certified