EZ-Drain Gravel Free French Drains - evacuates up to five times more water than standard gravel and pipe french drains. (10&#x27; long with a slotted pipe surrounded by polystyrene aggregate and enclosed in geotextile mesh.) Also at Home Depot - 8 in. x 10 ft. Prefabricated French Drain with Pipe (Model# EZ-0802F Store SKU# 227495)