Polyguard Polyflow 18H Drain Mat For Horizontal 4'X50' Rl

4' x 50' Roll, 0.4" Thick, 23 GPM per Ft, 21000 Lb Sq Ft Compressive, 365 x 200 Lb Grab Tensile, Black, Polymeric, Solid, Polyflow® Sheet Molded Drainage Mat for Horizontal Installation

Polyflow® 18 Drainage Mat is two-part, molded sheet drainage geocomposite consisting of a formed impermeable polymeric core covered on one side with woven filter fabric. The fabric allows water to pass into the drain core while restricting the movement of soil particles which might clog the core. The core allows the water to flow to designated drainage exits. Polyflow 18 is designed for horizontal applications. Compressive strength is 21,000 psf.