Brett Martin B2801 280mm Diameter Chamber Riser with Seal (185mm High)
- Brett Martin B2801 chamber riser with 280mm diameter and 185mm height (11in x 7¼in).
- Fits 110mm shallow inspection chamber base B2800 and double seal cover B2802 for seamless integration.
- Heavy-duty ribbed design resists deformation under load for long-lasting durability.
- Rubber seal provides a secure, watertight joint to prevent leaks in drainage systems.
- Easily trimmed on site with a handsaw to achieve the perfect height during installation.
The Brett Martin B2801 chamber riser is a robust solution for plumbers and civil engineers needing a dependable way to adjust inspection chamber heights. Designed with a 280mm diameter and built-in rubber seal, it ensures a watertight connection that stands up to site demands. This riser is ideal for drainage installations where a secure, leak-resistant joint is essential. Please note, this product is designed to fit specific chamber bases and covers, sold separately.
Application
This riser is made to sit securely on the 110mm shallow inspection chamber base (B2800), providing a reliable, sealed connection for drainage systems. It is commonly used where branch pipes join main drainage lines, preventing leaks through its integrated sealing gasket. Thanks to its heavy-duty ribbed construction, it withstands ground pressure and prevents deformation, making it suitable for both domestic and commercial drainage projects.
Dimension
- Chamber diameter: 280mm (11 inches)
- Invert height: 185mm (7¼ inches)
Material
- Durable polymer body with heavy-duty ribbed structure
- Rubber sealing gasket for watertight joints
Type
- Drainage chamber riser with integrated seal
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.
