Hose Connector Application Air Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Brass Fitting Side A Tube Outer Diameter 1/2 in Fitting Side B Tube Outer Diameter 1/2 in Maximum Operating Pressure 225 psi Maximum Operating Temperature 200 Degrees F Specific Fitting Shape Straight Connector Thread Size B 3/4-20 System of Measurement Imperial Standards DOT FMVSS 571.106 Compatible Tube Material Rubber