The Oase Filtral is a compact, all-in-one in-pond filter unit with a UV Clarifier and built-in filtration with 4 types of filter media that provide mechanical and biological cleaning for ponds up to 400 gallons. The Filtral 400 is powered by a 195 GPH pump and includes a 5W EPA-registered UV Clarifier, two filter foams, bio-media elements and filter pebbles to ensure extra cleaning power. Three interchangeable fountain nozzles are also included to create attractive water displays. Without a nozzle, the Filtral can run a small waterfall or stream via the diverter valve. 8"W x 9"L x 5"H