Group 4 covers

  • Highway V gully

    Highway V gully grates

    This range of D400 Group 3 gully gratings have been designed to provide optimum strength whilst maximising the available drainage area.

  • unite manhole cover

    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.

  • Highway manhole cover


    The Highway range of access covers exceed BS EN 124:2015 requirements and include specific design features required by the Highways Agency.

  • TriStar manhole covers


    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.