Waterproof systems (system SL-D301 and SL-D305) are suitable for a variety ofplaza deck conditions, including pedestrian plazas, vehicular plazas, balconies,terraces and observation decks and vegetated roofs.1) Material: PP2) Product size: SL-D301(333 x 333 x 25mm)3) Dimensions: 730 x 360 x 530mm4) Purpose: drainage water storage panels are used for sub-soil drainage and waterproofmembrane protection or to form tanks for underground water infiltrationor storage systems in:a) Landscape decks and planter boxesb) Plaza decks, balconies and pool sides c) Sports fields and golf coursesd) Concealed drains e) Retaining/basement wallsf) Storm drains g) Pond filtrationh) Infiltration and storage tanksi) Vegetated roofsPacking:72pcs/grass pavers/ctnConveyance:Qty/40' FCL: 27216pcs producing area:China