Covers & Containment

OPW's Fibrelite is the world’s leading brand of high quality GRP composite manhole covers and watertight underground access and containment systems. OPW sells to over 70 countries worldwide and was the very first company in the world to design and manufacture an easily removable composite manhole cover.

OPW manufactures 25 different access covers, both square and round, with the most common sizes being 900mm or 1020mm diameter available in both 25 tonne and 40 tonne load ratings. The Fibrelite brand pioneered the first ever multiport composite cover, which is useful where secondary contained direct filling is common.

From high performance GRP composite covers to watertight tank and dispenser sumps, OPW manufactures fully conductive products that can deliver in the toughest conditions.