Union, Application Potable Water, Fitting Side A Connection Type Cup, Fitting Side B Connection Type MNPT, Fitting Side A Copper Tube Size 1 1/4 in, Fitting Material Bronze, Fitting Side B Pipe Size 1 1/4 in, 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