Model D400 KM -Ductile Iron Manhole Cover & Frame

Complies fully with BS EN 124:1994 and Highways Authority HA 104/09 Standard - suitable for intensity of traffic in Group 4 Class D400 applications. Engineered from quality assured ductile iron. Unique, slip-resistant Thomas Dudley D400 manhole cover tread pattern. One piece Gripfix lid.