GENERAL MACHINE PRODUCTS 07350 SHIELD MANHOLE ADJUSTABLE NEW One tool will give you additional safety when working in round manhole openings ranging from 24-36 inches in diameter. Its cast aluminum clamps let it adjust and to stay to fit all manholes within its range. Once inside the lip of the manhole, the space between the base of the sheild the lip of the manhole can be sealed with GENERAL MACHINE PRODUCTS 's sealing compound (#24008). This will keep mud and surface water from entering an open manhole vault.
P/N 07350 Adjustable manhole ring 19 lbs