Keep water flowing through your outdoor fountain with the Sunnydaze Decor Submersible Outdoor Fountain Pump. This recirculating pump eliminates the need to plumb a fountain and is UL tested to ensure that it can be safely submerged in water. A flow rate valve gives you the ability to increase or decrease water flow as you see fit. Not just for fountains, the pump can also be used in aquariums and for hydroponic and aquaponic applications.