Manhole Cover Seal & Plug Products

stop lid inflow easily and economically

Stop lid Inflow easily and economically with our lid gaskets and lid plugs.

manhole cover seal

Low Maintenance Manhole Cover Seals

Keeping it Simple And Affordable.

Cretex lid plugs and lid gaskets are a perfect low price low, maintenance option. Installation is a breeze requiring minimal time and effort. View all the details on our. Tech-Data Sheet.
manhole plug

Removable Manhole plugs

Variable sizes

Manhole Lid Plugs stop inflow through manhole lids by sealing unneeded vent with high quality lid plugs. Lid plugs offer a low maintenance option for sealing existing manhole lids. They can be removed with pliers for lid removal or to check interior air quality and are adjustable for use in rough or irregularly shaped holes. These removable plugs fit various sizes of holes and made of hi-quality rubber for longevity. Available in six sizes to fit 3/4”, 7/8”, 1”, 11/8”, 11/4” and 11/2” diameter holes in lids 1”or less in thickness. Check our specifications doc for more info.

Manhole lid gaskets

Eliminates the noise too.

Stop inflow around the manhole lid with our low-maintenance lid gasket option for sealing existing manhole lids. This seal, molded or extruded from high-quality rubber, is available with our exclusive triangular-shaped outside rib. Its use not only ensures a positive lid-frame seal but eliminates lid rattle as well, and when properly installed, is not disturbed by lid removal and replacement. For instructions on ordering, see our order measuring tips.