# Underground Inspection Chamber – 450 × 160mm

This Underground Inspection Chamber Base (PPIC) has a 450mm diameter and is designed for 160mm and 110mm drainage systems, making it suitable for a wide range of underground drainage layouts.

The chamber features a 160mm main channel with two 160mm side inlets positioned at 90° to the main channel, along with two additional 110mm inlets at 45°, allowing flexible pipe connections within the drainage network.

With a maximum invert depth of 1200mm (1.2m), this inspection chamber base provides reliable access for inspection, maintenance, and cleaning of underground drainage systems, making it ideal for residential and commercial drainage installations.

## Details

- **Price:** 98.33 GBP
- **Vendor:** BRETT MARTIN PLUMBING & DRAINAGE (B80B)
- **Type:** Underground Drainage
- **Tags:** Black, Building Materials, Chamber Base, Drainage, Local, Underground Drainage

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 98.33 GBP | In stock |

## Images

- Black plastic underground drainage inspection chamber base with multiple pipe inlets

---

> Source: [Carvers Building Supplies](https://www.carvers.co.uk/products/underground-inspection-chamber-450mmx-160mm-b5696)
> Updated: 2026-06-17