Cherne® Air-Loc® Bladder Style Manhole Testers provide an efficient, accurate, cost-effective method of testing new, existing and rehabilitated manholes per ASTM C 1244. Their remote-inflation and monitoring system keeps users away from the danger zone. Cherne Industries is a global leader in pipe plugs and testing.
- Cherne Air-Loc Bladder Style Manhole Testers seal the inside diameter of the manhole at frame or cone
- Supported by a durable aluminum brace
- Push-pin rod design for easy depth adjustment