The Oatey Mystic Rainwater Collection System includes a 4 ft. high-flow hose to connect the diverter to the collection container and an outlet port plug for stopping the flow of water from exiting into the hose or barrel. The Mystic Rainwater Collection System is used to recycle rainwater by directing rainwater from downspouts into collection barrels (not included) for reuse in lawn and garden watering. The Mystic is easily installed and will fit on a standard 2 in. by 3 in. residential downspout. Use the outlet port plug for winterizing or when the water collection barrel is full.