Drainage365 offers a comprehensive range of Manhole Covers and Gully Grates manufactured in ductile iron, cast iron and steel to suit a variety of requirements. Manhole covers are used to cover open drains or inspection chambers, to prevent access for health and safety reasons and in many cases to allow traffic and pedestrians to walk or drive over the access points. To prevent odours from re-entering a building double sealed manhole covers are used within properties. Gully grates are installed on top of gully pots and have an open grid surface to allow storm water to drain effectively in open areas such as yards, access and major roads.