Union, Application Potable Water, Fitting Side A Connection Type Cup, Fitting Side B Connection Type MNPT, Fitting Side A Copper Tube Size 1/2 in, Fitting Material Bronze, Fitting Side B Pipe Size 1/2 in, Fitting Side A Tube Outer Diameter 5/8 in, Fitting Side B Tube Outer Diameter 5/8 in, Maximum Operating Pressure 577 psi, Maximum Operating Temperature 200 Degrees F, Specific Fitting Shape Straight Union, Standards ASTM B584 Alloy 87850, NSF/ANSI 61 Annex G, Material Grade C87850