Brett Martin's Inspection Chamber Riser features a robust, ribbed design with connecting lugs for stable assembly. Designed to be installed as the mid-section of a system, it sits atop the base, connected with rubber seals, to ensure the correct height is met for the inspection chamber cover to sit over smoothly at the surface. If you need to adjust its size, it can be easily cut to ensure you have the right length, so it doesn't exceed what's necessary.

When assembled with the chamber base, cover and frame, sealing rings and chamber reducer, the assembly meets the requirements of Building Regulations Part H1. There are also branch outlets available to ensure optimal flow direction. The assembly is straightforward to install with push-fit technology and can be watertight if done correctly.

Features & Benefits: Brett Martin Inspection Chamber Riser 450mm diameter - 325mm Invert

• Designed to fit atop the base as part of the mid-section of an inspection chamber
• Connects with rubber seals
• Straightforward assembly meeting requirements of Building Regulations Part H1

Please note:

• The invert refers to the distance between the top of the unit and the bottom of the inside of the connecting inlet pipework.
• Seals not included.