NDS® gravel free French Drain products can be used as a substitution for a traditional gravel French drain. They consist of fabric, lightweight gravel substitute, and pipe all in one package. The NDS® French drain can be installed anywhere a traditional French Drain can is installed plus areas where access is limited or heavy gravel can't be easily installed. A few of the many applications are: landscapes drains, roof run-off drains, basement or crawlspace dewatering, retaining wall drains, foundation or perimeter drains, interceptor drains, and curtain drains. The NDS® French Drain is a prefabricated trench drain that is a gravel free option to a traditional French drain. It cuts installation time in half by eliminating the need to transport, shovel and move heavy gravel. It is made of 3 or 4 slotted corrugated pipe, surrounded by NDS® poly-rock, and wrapped in a geotextile fabric. It's durable, crush-proof and has a 100-year lifespan. The NDS® French Drain has been designed to take water out of the soil and pipe it to a safe discharge point like an NDS® Flo-Well or Pop-Up emitter.