Victaulic® Coupling, 750 Series, Coupling Fitting, 8 in Connection Size 1, Connection Type 1: Grooved, 6 in Connection Size 2, Connection Type 2: Grooved, Grooved Connection, Iron, Material Construction: Iron, Finish: Hot-Dipped Galvanized, 500 psi, For Use With: Original Groove System, Roll Grooved and Cut Grooved Pipe, OGS Grooved Fittings, Valves and Accessories, 6.625 in ID x 8.625 in OD x 14.88 in L x 2.5 in D, Additional Information: 7/8 x 5 in Bolt Size, 2 Holes