Spears® 1-Piece Flange, Flange Fitting, 2-1/2 in Connection Size 1, Socket Connection Type 1, 2-1/2 in Connection Size 2, Socket Connection Type 2, Socket|Socket Connection, CPVC, Molded CPVC Material Construction, Gray, 1 in Flange Thickness, 4-Bolt Holes, 5/8 in Bolt Hole Diameter, 150 lb Pressure Class, 150 psi, 7 in OD x 2-1/4 in H, 73 deg F, Additional Information: 5-1/2 in Dia Bolt Circle, 3-1/4 in Minimum Bolt Length