Union Elbow Application Gases Liquids 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 Temperature 400 Degrees F Overall Length 1 1/2 in Specific Fitting Shape 90 Degrees Elbow Compatible Fitting Brands A-LOK Thread Size A 7/8-20 Thread Size B 7/8-20 System of Measurement Imperial Standards ASME SB75 ASTM B75