Fiberglass Pole Adapter For GoPro Category_Default Category Products Hydro Jetting Tools Vacuum Equipment The smaller tubes slide into Jets sized according to The smaller tubes slide into the larger tubes and there is a thumbscrew to tighten it down They are designed to reduce or eliminate friction wear (especially peeling and scratching of the hose outer coating) as the high pressure jetting hose enters a pipe or drain hazmat tanks or duct work you can inspect and see what is there This simple adapter allows you to inspect manholes and tanks or any underground or inaccessible area that otherwise you cannot get into or don’t want to enter for safety