Fernco 5-Pc. Storm Drain Kit is used for surface water drainage system. It includes 3 pieces of 39.5" channel with grate, 1 end cap & 1 end outlet. Easy to install, grates clip in, bottom outlet accommodates 3" & 4" sewer & drain pipe. lightweight, uv inhibited, rated for 5 tons, heavy duty. Can be used to drain driveways between garage & driveway, patios to prevent water pooling, swimming pools to divert pool water away from grass or flower beds, gardens, sport courts & walkways.