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 1/4 in Fitting Side B Tube Outer Diameter 1/4 in Maximum Operating Pressure 150 psi Maximum Operating Temperature 200 Degrees F Specific Fitting Shape 90 Degrees Elbow Thread Size B 7/16-24 System of Measurement Imperial Standards SAE J246 Compatible Tube Material Nylon Minimum Operating Temperature 40 Degrees F