Sweat Fitting Adapter, Application Air, Potable Water, Fitting Side A Connection Type Cup, Fitting Side B Connection Type SJ, Fitting Side A Copper Tube Size 1 1/4 in, Fitting Side B Copper Tube Size 1 1/4 in, Fitting Material Wrot Copper, Fitting Side A Tube Outer Diameter 1 3/8 in, Fitting Side B Tube Outer Diameter 1 3/8 in, Maximum Operating Pressure 5 psi, Maximum Operating Temperature 400 Degrees F, Specific Fitting Shape Straight Adapter, Standards ASME B16.29, ASTM B75, ISO 9001