4 in 1 Pond Filter Pump, 660 GPH Fountain Pump w/ 9-Watt Sterilizer and Fountain JetDescription This 4 in 1 pond filter system includes a fountain, pump, filter, and lamp to decorate and clean your pond. Four different types of filter media can effectively clean and improve water quality to give you a healthy pond. Designed for ponds up to 1188 gallons, the pond filter with a 660 GPH max flow rate is powerful. This system is also supplied with a high quality fountain attachment set comprising three different fountain attachments,