Speed Control, Air Inlet Size 1/2 in, Air Inlet Type NPT, Hex Size 1 1/16 in, Maximum Operating Pressure 300 psi, Minimum Operating Temperature 35 Degrees F, Maximum Operating Temperature 300 Degrees F, Filter Rating 40 micron, Air Outlet Size 1/2 in, Air Outlet Type NPT, Body Material Bronze, Minimum Flow Rate 0 scfm