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