The Aquaflow 320mm Round Plastic Manhole Cover & Frame is a plumbing part designed to cover access to an underground drainage component and to allow access for inspection and cleaning. Made from heavy-duty plastic, these manhole covers are tough and durable enough to perform well even in bad weather, and are designed to be used outdoors and underground without rotting, warping or degrading like other materials. Coming with a frame as well as the cover itself, this Aquaflow 320mm Round Plastic Manhole Cover & Frame product is easy and quick to install and can be cleaned and maintained easily too, making it a cost-effective choice.