This 560mm solid top manhole cover is made from strong AP9 grade polypropylene.It has a 3.5 Tonne load rating, which makes is suitable for domestic driveways, pedestrian and landscaping use only.The actual overall size of the cover is 560mm x 560mm x 80mm. The total external size including the frame is 580mm x 580mm, with a depth to the locating ring of 133.5mm.The circular connection ring enables this cover to be fitted to any 450mm diameter inspection chamber.The cover comes with a dual locking facility, being able to lock both the cover to the frame and the frame to the inspection chamber. The square frame can be swivelled to enable alignment to surrounding surfaces and it can be tilted for out of true surfaces.This manhole cover is LABC approved. It is made by Clark-Drain.Plastic manholes, whether polypropylene or PVC, are all durable and long-lasting. Manufactured by injection moulding to exacting specifications , they will stand the test of time. They are considerably lighter tha