Description

Holds up to 50 ft of backpressure | Seals air tight (Does not rely on threads to seal) | Back pressure actually increases sealing ability | Completely flush inside and out | Can install cleanout cover over plug | Cannot fall into the pipe | Comes with 5/16 Inch wrench | Patent 7464727 | Center is tapped for screw, and can be covered with cleanout cover | Stainless steel flat head screw