Viega ProPress 2in - 45 degrees Copper Elbow - Double Press Connection - Smart Connect Technology. ProPress 1/2in - 90 degrees; Copper Elbow - Double Press Connection - Smart Connect Technology Specifications for Viega ProPress Copper Elbow Fitting - Double Press Connection: Manufacturer: Viega Quantity: 1 Features of Viega ProPress Copper Elbow Fitting - Double Press Connection For use with ASTM B88 tubing Copper Press connection Components: EPDM sealing elements Package Contents: Viega ProPress Copper Elbow Fitting - Double Press Connection Viega 77043: ProPress 2in - 45 degrees Copper Elbow - Double Press Connection - Smart Connect Technology