Cherne® 041386 Pneumatic Pipe Plug, 8 in Pipe, 17 psi Working, 40 ft Head, Natural Rubber, Domestic

Single size underground Test-Ball® plugs are made of natural rubber material for excellent expansion and memory. Seals both round and out-of-round pipe. Removable inflation valve can be replaced if damaged or replaced with quick disconnect fitting. Features an eye bolt for use with a poly-lift line. Use to block flow or as a back plug for sewer air testing. Natural rubber body provides excellent expansion and a great seal in round and out-of-round pipe. Inflatable design can fit through test tees, sanitary tees, floor drains and other hard to access pipe openings. Ideal for testing DWV plumbing systems at pressures up to 13 psi or with 30 ft of head pressure. Utilizes a standard tire air fitting for easy connections.