Clark-Drain 600 x 600mm clear opening ductile iron manhole cover and frame with D400 load rating classification.
For use in heavily trafficked areas e.g. highways and commercial/industrial areas
HA104/09 (low-risk areas) compliant
Double-Tri non-rock design
BS EN124 accredited
Class D400 (40T loading)
Integral lifting keyholes
Kitemark certified