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Suitable for pavements, road verges, street lighting and traffic signal applications.


Polypropylene underground access chamber.

Features and benefits:

  • Universal T-slot corner connection for multiple chamber size configurations (300 x 300 mm, 300 x 450 mm, 450 x 450 mm, 450 x 600 mm, 600 x 600 mm).
  • Honeycomb internal wall provides natural strength by allowing backfill concrete to flow into hexagonal voids during installation.
  • Horizontal cutting guides to allow easy reduction of panel height by 50 or 75 mm for fine-tuning of chamber height against finished surface level.
  • Integral male/ female pin and socket connections for easy horizontal stacking.
  • Made from 100% recycled material and fully recyclable at end-of-life.
  • Perfect partners for Clark-Drain B125 Composite Covers, product codes CD 261/SF, CD 262/SF, CD 263/SF, CD 264/SF and CD 265/SF.
  • Manufactured in the UK under a certified ISO9001:2015 Quality Management System.

General information



Grade AP9.


Pr_65_52_01_64 Plastics access chambersPrimary


P30/150 Access and inspection chamber systems

Specification data - Plastics access chambers

Sizes (nominal)

300 x 352 x 300 mm.

30 mm thickness.

Preformed bases

63 / 110 / 120 mm x 2.

Load class (minimum)

B125 (12T).


0.6 kg.

Environmental information

Country of product manufacture

United Kingdom

Recycled content

100 %