Profile: Drainage Products, Inc. is prefabricated geocomposite drains. Our panel drain is a prefabricated geocomposite drain that consisting of a double-sided formed polystyrene core. They covered on both sides with a non-wowen geotextile and include a sleeve to insert a perforated pipe. Our highway edge drain is consisting of a formed polystryrene core enveloped with a non-woven, needle punched polypropylene filter fabric.