CD456 450mm Dia Circular Square To Round Solid Top Cover

Description

Clark Drain CD456 Polypropylene Manhole Cover

The CD456 is a lightweight polypropylene access cover designed for use with 450mm inspection chamber systems in domestic drainage installations. This Round To Square Drain Cover provides a circular 450mm clear opening within a square frame format, helping simplify installation into surrounding paved and landscaped surfaces. Manufactured from polypropylene Grade AP9, the cover is designed for domestic driveway loading applications and incorporates dual locking between the lid, frame, and chamber connection for improved security and stability.

Specifications

Key design features

The CD456 uses a round internal access opening within a square external frame to improve integration into paved and finished surface areas. An extended frame profile supports levelling against surrounding surfaces during installation. The dual locking arrangement secures both the lid to the frame and the frame to the chamber system, helping improve stability during service use. The cover is also compatible with the CD499 reducer for restricting chamber access in deeper installations.

Benefits

• Lightweight polypropylene construction supports easier handling on site.
• Suitable for domestic driveway loading applications up to 35kN.
• Square external frame integrates neatly into paved surfaces.
• Dual locking design improves cover and chamber security.
• Compatible with major 450mm PPIC chamber systems.

Applications

This Round To Square Drain Cover is used within domestic drainage and inspection chamber installations where a lightweight access solution is required. The CD456 is suitable for driveways, landscaped areas, and residential drainage systems using 450mm plastic inspection chambers.

Explore more

Browse the full range of manhole covers and drainage chamber components to complete your installation.

Contact us

For help selecting the correct chamber cover or confirming compatibility with your drainage system, contact the team for technical advice and UK wide supply.