About the material
A corrugated double-wall pipe of high-density polyethylene: a smooth bore for flow and a ribbed outer wall for ring stiffness. Lighter and stronger than smooth PVC, it suits deeper trenches and heavier loads.
Where it is used
Deep drains and runs under driveways where extra strength is needed.
Other materials
App
Garden planner app for phone and computer
- An icon on the home screen — back to your plot in one tap
- Full screen without the address bar — more room for the plan
- The same projects on phone and computer — cloud autosave
gardmi
Garden site planner · free
You are already in the app — gardmi is installed.
