Z888-18Z888-18 HI-CAP SYSTEM13" wide 1 3/4" Hi-Cap slotted drainage system. Linear low density polyethylene modular drain channel with smooth non-stick, non-corrosive interior and 0% water absorption. 80" modular sections with integral frame, mechanically interlocking joints and smooth radiused interior. Integral tie-down/leveling devices at 20" intervals and load distribution rebar stances for application of continuous lengths of rebar for structural integrity.