CHE CLEAN-OUT 3.5 IN., MECH GRIPPER PLUG GLASS-REINFORCED ABS PLASTIC MATERIAL; 2.2 INCH PLUG/BALL LENGTH; MECHANICAL OPERATION TYPE; NATURAL RUBBER O-RING, STAINLESS STEEL HARDWARE INCLUSIONS/FEATURES; TEST PLUG; 3-1/2 INCH DRAIN LINE DIAMETER; 40 FOOT ALLOWABLE PRESSURE HEAD