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CD300 300mm Square To Round Solid Top Cover

Solid top cover & frame, circular opening in frame fits all major manufacturer’s polypropylene shallow inspection chambers.

Corrosion resistant polypropylene cover & frame.

Can be rotated to match direction of paving. Ideal for tarmac, grass or gravel areas.

Slip resistant surface tread pattern. Full Dimensions below

£18.95 excl VAT £18.95

Product Code: CD300

Polypropylene Square to Round Chamber Cover for Tarmac, Grass and Gravel

The CD300 is a square to round solid top cover for round domestic inspection chambers. Clark Drain moulds this 300mm drain cover from Grade AP9 polypropylene, with a square frame that sits flush in tarmac, grass or gravel over a circular riser below.

Specifications

Product code CD300
Product type Square to round solid top cover
Material Polypropylene Grade AP9
Clear opening 220 to 300mm diameter
Overall size 438 x 438mm
Depth 97mm overall, 37mm frame
Load rating 35kN, held for 30 seconds (domestic driveway)
Weight 4kg
Fixings 4 locking screws supplied

Key Design Features

A stepped spigot on the underside acts as a reducer, so the one cover fits Clark Drain U353 and U355 risers and most other manufacturers’ 220 to 300mm risers. The square frame can be rotated to match the direction of paving, and four locking screws hold the cover in the frame.

Benefits

  • One cover fits a range of riser diameters, reducing the stock needed on site.
  • Square frame aligns with paving edges and surface finishes.
  • Locking screws stop the cover lifting or being removed by hand.

Applications

Use the CD300 Square To Round Solid Top Cover over round inspection chambers in domestic driveways, gardens and landscaped areas finished in tarmac, grass or gravel. Clark Drain rates the 35kN load for domestic driveways, so specify a higher rated cover for commercial or heavier traffic.

Other Sizes & Options

The CD456 450mm version covers the larger 450mm chamber. The Clark Drain range lists recessed block paving covers and reducing rings.

Contact Us

For help matching a cover to your chamber riser, contact Castings Drainage for technical advice and UK-wide supply.

Downloads

  CD300.pdf