Copper Conversion Companion Flange Adapter, Nominal Size: 3 inch, Solder Joint Connection, Plate-Steel, Powder Coated Finish, 150 lb Pressure Class, Pressure Rating: 450 PSI Working (At Atmospheric), Temperature Rating: -66 to 272 Deg F Service, Standards: Drilling to Match ANSI B 16.5 Specifications, Dimensions Of Solder Joint - Manufactured to ASME B 16.22-95, 2.89 inch Inner Dia, 5 inch Outer Dia, Dimensions: 2.35 inch L