Learn how the Manhole tester seals the inside diameter of the manhole at frame or cone by watching this video. 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 the global leader in pipe plugs and testing. www.oatey.com/brands/cherne
11 сен 2018
