Drainage materials
perm filter
perm filter
Permanent filters are used as drainage materials on the back side of retaining walls, etc., and prevent the destruction of structures such as retaining walls due to stagnant water.
Features
- A special water filter collects water and guides it to the drain hole.
- Because the water collection area is large, it is effective in quickly guiding water seeping from the ground due to heavy rain etc. to the outside of the retaining wall.
- Equipped with a fiber filter with excellent water permeability inside to prevent sand from flowing out and clogging.
- The main body is made of synthetic resin, so it has extremely high durability.
- Lightweight, easy to carry, and easy to work with
Uses
- Drainage from the back side of concrete retaining walls, etc.
Spec.
| Part number | Thickness (mm) | Diameter（mm） | mass (g/piece) | Water collection surface area (cm²) | Water guide pipe diameter (mmφ) |
| V-1 | 138 | 300 | 800 | About 1,000 | 50 |
