Victaulic® Roust-A-Bout® Coupling, Series: Style 99, Coupling Fitting, Connection Size 1: 6 in, Connection Type 1: Plain End, Connection Size 2: 6 in, Connection Type 2: Plain End, Plain End|Plain End Connection, Iron, Ductile Iron Material Construction, Hot-Dipped Galvanized, For Use With: Plain End Pipe, 6.625 in OD x 13.38 in L x 5 in H, -30 to 230 deg F, Additional Information: ASTM A536, Grade 65-45-12 Material Standard