Tube Union 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 150 psi Maximum Operating Temperature 200 Degrees F Overall Length 1 5/16 in Specific Fitting Shape Straight Connector Thread Size B 11/16-20 System of Measurement Imperial Standards SAE J246 Compatible Tube Material Nylon