1PCS 50FT Black Under Deck Drainage System Trough HDPE Waterproofing Membrane Fi
Deck size 50FT 16″ /12″ 600 SQ.FT. 200-250 SQ.FT. Application For under deck drainage system For under deck drainage system For seamless deck For seamless deck For seamless deck For seamless deck. Muzata Under Deck Drainage System.