Solder DWV Elbows Application Drain Vent Waste Fitting Side A Connection Type Cup Fitting Side B Connection Type Cup Fitting Side A Copper Tube Size 4 in Fitting Side B Copper Tube Size 4 in Fitting Material Bronze Fitting Side A Tube Outer Diameter 4 3/8 in Fitting Side B Tube Outer Diameter 4 3/8 in Specific Fitting Shape 45 Degrees Elbow Standards ASME/ANSI B16.22 MSS SP-104 NSF/ANSI/CAN-61 Compatible Tube Material Copper