Our Circular Infill Cover is a ductile iron frame and lid designed to be filled with concrete on site, allowing the finished cover to sit flush with the surrounding pavement or surface rather than standing out as a visible access point over manholes and utility openings. Available in 610mm and 750mm sizes, with Class B, D and E load ratings to suit pedestrian and vehicle trafficked areas. The 610mm cover is MRWA approved in both Class B and Class D configurations for use on Melbourne Water’s network.