Copper Flange Application Potable Water Fitting Side A Connection Type Cup Fitting Side B Connection Type Flange Fitting Side A Copper Tube Size 2 1/2 in Fitting Material Wrot Copper Fitting Side A Tube Outer Diameter 2 5/8 in Maximum Operating Pressure 450 psi Maximum Operating Temperature 272 Degrees F Specific Fitting Shape Flange Adapter Flange Outside Diameter 4.2 in Number of Bolt Holes 4 Flange Thickness 63/100 in Precleaned Not Pre-cleaned Bolt Hole Diameter 3/4 in