RamDrain DD 025 HS

RamDrain DD 025 HS is a two-layer extremely high compression strength system. The first layer is constructed of high strength, cuspate (dimpled) polymeric sheet designed to provide superior compressive strength. Adhered to the high strength, cuspated polymer base is a nonwoven filter fabric. The non-woven spun-bonded filter fabric is designed to promote high water flow while not allowing dirt and silt to penetrate the drainage channel.