# Underground Chamber Riser Seal – 450mm

This 450mm Inspection Chamber Riser Sealing Ring is designed to be used in conjunction with 450mm Inspection Chamber Risers (B5397) to create a secure and watertight seal within underground drainage systems.

The sealing ring fits 450mm inspection chamber components and ensures a tight connection between risers, helping maintain the integrity of the chamber structure while preventing leaks.

A typical 450mm inspection chamber system may include a chamber base, risers, ring seals, a restrictor ring, and a suitable cover and frame, all working together to provide reliable access for inspection and maintenance of underground drainage networks.

## Details

- **Price:** 3.66 GBP
- **Vendor:** BRETT MARTIN PLUMBING & DRAINAGE (B80B)
- **Type:** Underground Drainage
- **Tags:** Black, Building Materials, Drainage, Local, Riser Seal, Underground Drainage

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3.66 GBP | In stock |

## Images

- Black rubber O-ring gasket for plumbing or bathroom fittings, isolated on white

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> Source: [Carvers Building Supplies](https://www.carvers.co.uk/products/underground-chamber-riser-seal-450mm-b5398)
> Updated: 2026-06-23