Oatey 4-Inch Cherne Test Ball Plug - Heavy Duty Inflatable Pipe Plug for Drain & Sewer Testing - Perfect for Plumbing, HVAC & Construction Projects

Cherne Single-Size Test-Ball Plugs are designed to test drain, vent and waste systems in every type of pipe. They also can be inserted through a test tee to seal out-of-round pipe.Features: 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 openingsIdeal for testing DWV plumbing systems at pressures up to 13 psi or with 30 ft of head pressureUtilizes a standard tire air fitting for easy connectionsRing and chain assembly helps prevent the plug from being drawn into DWV systems during tests.Specifications: Product Type:Test Plug Size:4" Material:Rubber