Rain Barrel Collects Nature’s Valuable Resource—Water! Catches and holds rain water from your drain spout to provide an ample supply of FREE soft water for vegetable gardens, flower beds, potted plants and lawns. No chlorine, lime, calcium or sediments that can actually thwart plant growth. Bottom discharge valve quickly connects to standard 3⁄4"dia. hose end. Collapsible 3-ply, UV resistant polyester tank holds 74 gallons!