Automatic Drain Valve Pipe Size 3/4 in NPT Drain Outlet Dia 1/2 in Max Pressure 450 psi Operating Temp Range 32 Degrees to 180 Degrees F Drain Rate @ 100 PSI 1 gpm Min Pressure 40 psi Bowl Capacity 28 oz Body Material Aluminum/Fiberglass Overall Height 8 13/32 in Overall Width 9 15/16 in Overall Depth 13 5/8 in