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Gritblocker & Screwlift CDU

CDU Instructions

Counter Display Units - Instructional Videos

Screwlift

Screwlift

ScrewLift is our rapid manhole frame levelling system and is suitable for use with nearly all of our D400 and E600 manhole covers and gully grates.

ScrewLift is very straight forward to use and can be installed with any bedding mortar.

Gritblocker in keyway

Gritblocker

Access cover keyways filled with debris can lead to incorrect lifting of a manhole covers out of the ground, creating a health and safety risk. Fixing this can take time and can be potentially dangerous to operatives.

GritBlocker is the solution! An anti-blockage keyway insert which simply fits into the manhole cover keyway preventing debris from blocking the opening and allows a lifting key to be inserted.