Brett Martin B2803 280mm Diameter Shallow Inspection Chamber Base 90 Degree
- Brett Martin B2803 inspection chamber base with 280mm (11") diameter and 205mm (8") invert depth
- Compatible with 110mm (4") drainage pipework featuring two sockets for secure connections
- Includes removable socket plugs for flexible 90-degree or straight-through pipe configurations
- Suitable for invert depths up to 600mm, meeting Building Regulations Part H1 requirements
- Watertight push-fit design ensures leak resistance and straightforward installation
The Brett Martin B2803 is a shallow inspection chamber base engineered for plumbers, drainage engineers, and civil contractors working with 110mm drainage systems. It provides a reliable, watertight access point ideal for inspection and maintenance on shallow drainage runs, helping keep projects compliant and efficient. Important: the product is supplied as the base only; covers and other accessories are not included unless specified.
Application
This inspection chamber base is designed to integrate smoothly with 110mm drainage pipework, offering two socket connections that can be adapted for straight or 90-degree runs via removable socket plugs. It is suitable for invert depths up to 600mm, making it a practical choice for shallow drainage systems in civil engineering and plumbing projects. The watertight push-fit assembly prevents leaks and simplifies installation, ensuring reliable performance in line with Building Regulations Part H1.
Dimension
- Chamber diameter: 280mm (11")
- Invert depth: 205mm (8")
- Socket diameter: 110mm (4")
Material
- Robust, impact-resistant plastic designed for underground drainage use
Type
- Drainage inspection chamber base, shallow access type
Delivery
Important: The following delivery information applies only to orders placed online.
Delivery Times
When placing your order, you will be able to view available delivery times at the checkout.
Please note: while we aim to deliver within 2–3 business days, this is subject to stock availability. A member of our team will be in touch after you place your order to confirm your delivery date.
Click & Collect is also available from selected branches. However, please be aware that stock levels can fluctuate, so we’ll confirm product availability and collection timing once your order is placed.
Delivery Charges
Orders over £175 ex VAT within our local delivery area qualify for free delivery. This excludes palletised or specialist products.
For orders under £175 ex VAT, standard delivery is £10 plus VAT. Certain products have specific delivery costs:
- Civil Engineering products: £30 + VAT.
- Roofing Tiles under £249.99 ex VAT: £60 + VAT.
Delivery charges and policies may vary at the discretion of our branches, and we reserve the right to amend them as required.
We offer a variety of delivery options to meet your needs nationwide, including pallet shipping (subject to size and weight restrictions), site delivery, and same-day or next-day delivery via TradeKart (available in selected postcodes).
Delivery charges are calculated based on your location, the products ordered, and your selected delivery method. Final costs will be displayed at checkout. If you have specific delivery requirements, please contact your local branch via our Branch Finder.
For any delivery-related enquiries, please email our sales team at websales@lordsbm.co.uk.
