Solder Pressure Couplings Application Potable Water Fitting Side A Connection Type Cup Fitting Side B Connection Type Cup Fitting Side A Copper Tube Size 1 in Fitting Side B Copper Tube Size 1 in Fitting Material Copper Fitting Side A Tube Outer Diameter 1 1/8 in Fitting Side B Tube Outer Diameter 1 1/8 in Specific Fitting Shape Straight Coupling Includes Center Stop Dimple Center Stop Standards ASME B16.15 ASME B16.18 ASME B16.22 ASME B16.24 ASME B16.50 NSF 61G