Geo Drain cell is a structural drainage module manufactured from 100 % recycled poly proplene designed for sub-surface drainage where a high capture and discharge rate of water and high compressive strength is required. Geo Drain cell is used in the construction of roof gardens, planter boxes, plaza decks, basements, pond filtration systems, concealed drains, pre-cast and in situ drains and sports fields. Geo Drain cell provides a drainage cavity and, when used in a landscaped roof, it provides additional protection layer for the waterproofing membrane and eliminates the need for a gravel course.