Boiler Feed Valve w/Backflow Preventer Size 1/2 in Connection NPT Body Material Bronze Temp Range 33 Degrees to 212 Degrees F Max Temp 212 Degrees F Max Pressure 100 psi Width Not Applicable Length 8 in Height 7 in Features Dial Indicator Eliminates Need for Pressure Gauge High Capacity Fill Valve for Quick System Filling and Purging Pre-Assembled for Ease of Installation Push Button Fast Fill with Auto-Stop to Prevent System Over-Pressurization Same Lay Length as Watts 911