Riser Reducing Ring 470-320mm
- Clip in reducing ring to meet building regs Part H
- Used where a 450 chamber exceeds 1200mm depth
We keep a substantial range of in ground drainage in both 110mm (often referred to as 100mm or 4 inch) and 160mm (often referred to as 150mm or 6 inch). If you can’t find what you’re looking for, give us a call on 01637 880325 and we’ll do our best to get you sorted!