Supply Giant 3962 Flexible Pvc Pipe Cap With Stainless Steel Clamps, 4 Inner And 4-12, Blackcap a pipe end, cleanout or open test pipe in a DWV system PVc DWV Flexible cap A convex face design helps ensure that this flexible PVc cap will withstand high levels of pressure for testing purposes and minimizes ballooning This reusable cap is suitable fo..