UNITE D400 manhole covers
The best D400 access cover range available. Full of patented design features that give Unite the longest life and therefore lowest whole life cost of any D400 access cover.
D400 covers
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HIGHWAY
The Highway range of access covers exceed BS EN 124:2015 requirements and include specific design features required by the Highways Agency.
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TRI-STAR
The TriStar range of D400 ductile iron access covers carry the British Standard kitemark and possesses some innovative design features that mark it out from the competition.
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Surface boxes
This surface box combines high strength and light weight in an efficient and stable single-piece cover designed to be easy to remove in emergency situations.
