Companion Flange Application Air Non-Potable Water Fitting Side A Connection Type Cup Fitting Side B Connection Type Flange Fitting Side A Copper Tube Size 3 in Fitting Material Bronze Fitting Side A Tube Outer Diameter 3 1/8 in Maximum Operating Pressure 254 psi Maximum Operating Temperature 200 Degrees F Specific Fitting Shape Class 150 Companion Flange Flange Outside Diameter 7.5 in Number of Bolt Holes 4 Flange Thickness 5/8 in Bolt Hole Diameter 3/4 in