# Underground Spare Socket Plug – Chamber Only

This Underground Spare Socket Plug is designed to blank off unused inlets or outlets on PPIC/inspection chambers, ensuring a secure and watertight seal within the drainage system.

Available in 110mm and 160mm sizes, these plugs are compatible with the 315mm chamber base B3150 as well as the 450mm chamber bases B5494 and B5696. They provide a simple and effective solution for closing off spare connections during installation or future system modifications.

Easy to install and built for durability, the spare socket plug helps maintain the integrity and efficiency of underground drainage systems.

## Details

- **Price:** 5.41 GBP - 6.1 GBP
- **Vendor:** BRETT MARTIN PLUMBING & DRAINAGE (B80B)
- **Type:** Underground Drainage
- **Tags:** Black, Building Materials, Drainage, Local, Plug, Underground Drainage

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 110mm | 5.41 GBP | In stock |
| 160mm | 6.10 GBP | In stock |

## Images

- Black plastic pipe collar fitting for plumbing or drainage applications

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> Source: [Carvers Building Supplies](www.carvers.co.uk/products/underground-spare-socket-plug-for-110mm-chamber-only-b5000)
> Updated: 2026-06-16