Union Application Potable Water Fitting Side A Connection Type Cup Fitting Side B Connection Type Cup Fitting Side A Copper Tube Size 1 1/4 in Fitting Side B Copper Tube Size 1 1/4 in Fitting Material Bronze Fitting Side A Tube Outer Diameter 1 3/8 in Fitting Side B Tube Outer Diameter 1 3/8 in Maximum Operating Pressure 351 psi Maximum Operating Temperature 200 Degrees F Specific Fitting Shape Straight Union Standards ASME B16.18 ISO 9001 NSF/ANSI 372 NSF/ANSI 61