Honeycomb Plastic Water fast drain Drainage board 

1. Efficiently drains water while retaining an moisture level 2. 30mm Drainage Cell is engineered to be used in drainage-critical applications such as planter boxes and roof sports fields due to its strong structural design. 3. 30mm Drainage Cell can be versatile installed horizontally or vertically. 4. Efficient installation and infiltration. 5. 30mm Drainage Cell is indefinitely biological resistant. Item Unit BDrain-C40 BDrain-C50 Size mm 400x400x30 500x500x30 Raw Material   Virgin HDPE Virgin HDPE Dimple Height mm 30 30 Compressive strength ≥  kPa 150 140 Longitudinal flow capacity  cm3/s/cm…