This Beckett All-in-One Nozzle Kit W/Waterbell, Spray and Bubbler Heads for Pond, Fountain, Water Garden Pumps includes everything you need to create a unique water feature in your pond. Fountains help circulate pond water, add oxygen to the water and enhances the beauty of your water garden. By aerating the water, the nozzles introduce air into the pond and create a healthy environment for fish and plants. Interchangeable waterbell, spray and bubbler fountain nozzles create multiple features. Extension tubes are also included so the height of the nozzle can be adjusted to the depth of the pond. This nozzle kit includes 3 nozzle options, 2 extension tubes, 2 way flow control valve, connectors and adapters.