Cherne ® 3" Sure-Grip ® Water and Air testing Plug, 13 PSI

The Cherne Industries 3" single-size underground Test-Ball plug (13 PSI) blocks flow for sanitary and storm sewer testing, isolation, and back-plug air tests. Natural rubber construction expands to seal round and out-of-round pipes. Holds 40 ft of head; back-pressure to 17 PSI when used as a blocking plug.

Key Features

• Natural rubber with excellent expansion and memory — seals round AND out-of-round pipes
• Holds 40 ft of head pressure
• Back-pressure rating up to 17 PSI for blocking-plug use
• Removable inflation valve — swap with quick-disconnect fitting for high-cycle use
• From Cherne Industries — global leader in mechanical pipe plugs

Specifications

• Size: 3"
• Material: natural rubber
• Head pressure: 40 ft
• Back-pressure: 13 PSI

Applications

Sanitary sewer testing, storm sewer isolation, back-plug air tests, sewer maintenance and repair operations, and any contractor or utility task requiring temporary pipe blockage.

About Cherne Industries

Cherne Industries is the global leader in mechanical and pneumatic pipe plugs, blocking, and testing equipment — the brand specified on contractor and utility work orders nationwide.

Always follow Cherne inflation and back-pressure guidelines.

Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — we ship within the USA and welcome tax-exempt purchasing for qualified accounts.