Brett Martin 280mm Diameter Shallow Access Chamber 185mm Riser

Key Features & Benefits

• Perfect Fit: Sits securely atop the 110mm shallow inspection chamber base (B2800) and integrates smoothly with double-seal covers (B2802).

• Watertight Integrity: Features an integrated rubber sealing ring to ensure an airtight, leak-free joint that eliminates foul odors.

• Anti-Deformation Body: Heavy-duty external ribbing distributes vertical load and resists underground pressure.

• Trimmable Design: Easily cut down to size on-site with a standard handsaw for a flush ground-level finish.

• Fully Certified: Manufactured in the UK under ISO 9001:2015 quality standards and compliant with Building Regulations Part H1.

This drain riser from Brett Martin has a 280mm diameter, with a 185mm invert. The drain inspection chamber riser is perfect for shallow access chambers - inspection chambers should be installed wherever a branch pipe joins a main drainage pipe. This particular drain riser sits on top of the inspection chamber base, and is sealed using a rubber seal which creates a watertight join. 

This drain riser is suitable for shallow access inspection chambers, but additional drain risers can be added to build up the height. 

For use in 100mm drainage layouts, the 280mm Shallow Access Chamber Assembly includes a choice of straight through and 90° 280mm access bases. A cost effective solution, only 2 risers, chamber base and lid are required to satisfy the nominal invert depth of 600mm.

The assembly meets the requirements of Building Regulations Part H1. 

Technical Specifications

• Brand: Brett Martin

• Product Code: B2801

• Chamber Diameter: 280mm

• Invert Depth / Height: 185mm

• Material: Heavy-duty Polypropylene (PP) / Polymer

• Color: Black

• Seal Type: Integrated Rubber Gasket

• Standards Met: Manufactured to BS EN 13598-1 standards under ISO 9001:2015

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