DWV Adapter Application Air Non-Potable Water Fitting Side A Connection Type Cup Fitting Side B Connection Type MNPT Fitting Side A Copper Tube Size 2 in Fitting Material Cast Bronze Fitting Side B Pipe Size 2 in Fitting Side A Tube Outer Diameter 2 1/8 in Fitting Side B Tube Outer Diameter 2 1/8 in Maximum Operating Pressure 577 psi @ 200 Degrees F Maximum Operating Temperature 400 Degrees F Specific Fitting Shape Straight Adapter