Oatey 1-1/2 In. ABS Knock-Out Test Cap Plug is a versatile plumbing solution designed to provide secure and leak- connections for ABS and PVC DWV (Drain, Waste, Vent) pipes. This test cap plug is crafted for solvent welding to Schedule 40 ABS and PVC DWV pipes, featuring a deeper design that strengthens connections to ensure your plumbing system remains reliable over time. A key feature of this cap is its knock-out center, which can be easily removed using a tab, preventing potential blockages and keeping your hands of solvent cement during installation for a cleaner, more efficient process. Built to withstand 17 P.S.I. or 40 feet of head pressure, this durable white ABS cap plug long-lasting performance in demanding plumbing applications. Model Number: 39100