Multi-Size Test-Ball Plugs (Underground). Features: One plug fits multiple pipe diameters. Made of natural rubber 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. Use to block flow or as a back plug for sewer air testing.

Single-Size Test-Ball Plugs (Underground). Features: Designed to block sewer flow or for use as a back plug for sewer air testing. 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.

Designed for waste stack testing from floor drain to sewer pipe. Long enough to seal away vertical riser and sewer run. Includes 3' extension hose. Ring and chain assembly prevents plug from sliding down a line.

Multi-Size Test-Ball Plugs (Underground). Features: One plug fits multiple pipe diameters. Made of natural rubber 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. Use to block flow or as a back plug for sewer air testing.

Ideal for plumbing system tests. Easy to install with extra-large wing nut. Inside of pipe seals inside pipe as far as needed. Made with glass-reinforced ABS plastic. End-of-pipe seals only at the end of a pipe, preventing plug from falling into stack.