Cherne 4" End of Pipe Gripper Plug - 17 PSI, 40FT, 270245 - Heavy Duty Pipe Testing Tool for Plumbing, Drain Cleaning & Sewer Maintenance (Pack of 26) - Perfect for Contractors, Plumbers & DIY Home Repairs

Features: Cherne 270245 4" End of Pipe Gripper Plug , 17 PSI, 40FT Ideal for plumbing system tests.Easy to install with extra-large wing nutInside of pipe seals inside pipe as far as neededMade with glass-reinforced ABS plasticEnd-of-pipe seals only at the end of a pipe, preventing plug from falling into stack.