3-1/2 and 4 in. neoprene 0.750 inch Form 5 conduit body gasket. The Gasket is made of rugged neoprene rubber that offers high water/oil resistant. It is constructed to provide dust-tight seal between conduit body and cover.
Solid gasket may be changed to open type by pulling out pierce center section. It is UL 514B, cUL Listed.