Drainage Metal 20/40

This product is a scoria substitute in certain parts of the country. It is a clean metal commonly used around drain coil and behind retaining walls. The aggregate range is from 20mm - 40mm.
On Waiheke Island the Drainage Metal grades available are 7/14mm, 20/40mm and 40/60mm. Available at these locations:

- Avondale
- Hamilton Eastside
- Hamilton West
- Silverdale
- Swanson
- Waiheke Island
- Warkworth