TerraDrain 50 is a two-part prefabricated geocomposite drain, consisting of a formed polystyrene core covered on one side with a nonwoven needle-punched polypropylene 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. TerraDrain 50 is non-biodegradable and resistant to most soil chemicals, acids, and alkalies with a pH range of 3 to 12. TerraDrain 50 is manufactured to meet or exceed the following roll requirements.

TerraDrain 203 is a two-part prefabricated geocomposite drain, consisting of a high strength formed polystyrene core covered on one side with a woven monofilament polypropylene 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.  TerraDrain 203 is non-biodegradable and resistant to most soil chemicals, acids, and alkalies with a pH range of 3 to 12. TerraDrain 203 is manufactured to meet or exceed the following roll requirements.