- Underground Drainage
- Manhole Chambers & Lids
- 110mm Underground 450mm Round to Square Manhole Lid - CD456
450mm square to round screw locking cover & frame. Screw lock covers fully compliant with Part H of Building Regulations.
Features a dual locking facility, enhanced anti-slip surface and an extended frame for levelling to surrounding surfaces.
Loading Limit: 35kN
Standards: EN1401-1, Part H of Building Regulations