Union Elbow 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 7/16 in Specific Fitting Shape 90 Degrees Elbow Compatible Fitting Brands NTA Thread Size A 11/16-20 Thread Size B 11/16-20 Series NTA System of Measurement Imperial