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 5/8 in Fitting Side B Tube Outer Diameter 5/8 in Maximum Operating Pressure 150 psi Maximum Operating Temperature 200 Degrees F Overall Length 1 19/32 in Specific Fitting Shape 90 Degrees Elbow Compatible Fitting Brands NTA Thread Size A 13/16-18 Thread Size B 13/16-18 Series NTA System of Measurement Imperial