Body Size and End Connection: 1/4 NPT Maximum Inlet Pressure: 420 psig / 29.0 bar Fixed Relief Pressures: 35 to 350 psig / 2.4 to 24.1 bar with nine settings Temperature Capabilities: -20 to 160°F / -29 to 71°C Approximate Weight: 0.25 Pound / 0.1 kg