Cherne 270548 4" Hub-Fit Gripper Plug , 13 PSI, 30FT

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.

Bulk Test-Ball Plugs - Individual Display Bags Features: Same great Test-Ball plug in bulk packaging. Preprinted bag designed for use with peg hook displays. Bulk Test-Ball Plugs MUST be ordered in quantities of 24 plugs.

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.

Smaller deflated diameter. Improved hardware for more strength. Shorter length. Additional bypass sizes available. 20-40" and larger sizes feature patented, field-repairable rupture disc technology to eliminate over-inflation risk.