Cherne 369158 Big Mouth Flow-Through Plug 15" w/ 12" OD bypass

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.

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.

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.

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.

Cherne 270188 4" Clean-Out Gripper Plug, 17 PSI, 40FT Patented threaded O-ring ensures airtight seal. Stainless steel hardware prevents corrosion. Black color blends well with cast-iron pipe. NPT-sized. Guaranteed to seal all damaged threads. Made with glass-reinforced ABS plastic and natural rubber O-ring.