Camco 10453 3/4" Lead-Free Temperature and Pressure Relief Valve with 4" Epoxy-Coated Probe - Extended Shank Protects water heaters from excessive water temperatures and pressure Resistant to corrosion Factory preset to 150 psi and 210 degrees Fahrenheit 3/4" NPT connection with 2.5" epoxy coated probe and extended shank CSA low lead content certified; Complies with California's AB1953 and Vermont Act 193 Low Lead Laws