The Cherne Air-Loc Leak Locator 12"-24" (part #217-288) is a pneumatic blocking plug designed specifically for sewer leak location. Rated for 15 PSI. The Air-Loc system uses a parachute deployment method to guide the plug through the pipeline to the test location — the plug inflates at the target point to isolate sections for air pressure testing. Used with Cherne Air-Loc parachutes (sold separately) for systematic leak detection on sewer mains.

Key Features

I-Series premium construction — natural rubber bonded to aluminum end plates
Full blockage — isolates pipe sections for air testing
15 PSI rated — for sewer air pressure testing
Pneumatic inflation — natural rubber seals round and out-of-round pipe
Parachute deployment — guided through pipeline to test location (parachutes sold separately)

Technical Specifications

Cherne Part Number	217-288
Pipe Size Range	12"-24"
Bypass	None (full blockage)
Max Back Pressure	15 PSI
Body Material	Natural rubber, aluminum end plates

Applications

Municipal sewer air pressure testing, storm drain isolation, large-diameter pipe testing during construction and repair, and compliance testing on trunk mains. Always follow Cherne inflation and back-pressure guidelines.

Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — same-day shipping on in-stock items, tax-exempt purchasing for qualified accounts.

Cherne® Air-Loc® Leak Locator ® Blocking Plug 12-24 in, 15 PSI