450mm B125 circular ductile iron cover and frame for covering manholes. Single seal cover is airtight when sealing groove is greased.
For use in Group 2 (B125) environment such as driveways and pedestrian areas, where only occasional vehicular access is likely.
Manufactured to BS EN 124. BSI Kitemark. Black bitumen coating.
Clear Opening: 450mm
Total Diameter: 555mm
Frame Depth: 40mm