Features:Additional photoFor tanks up to 210 gallonsDimensions: Height 20", Diameter 5.0", Footprint 6" X 12"Hang-on tank or sump installation Acrylic skimmer with collection cupIncludes a Paddle Wheel Injection Pump (660 gph). Includes pump connection tubing.Air Inlet SilencerMolded micro-bubble collection trap Easy-twist removable foam collection cup and collection cup drain lineOzone compatibleWatts: 50. Amps: .42.User Manual (pdf format in new window)Powered by a patent pending paddle-mixing injection system, the Fission Power Skimmer violently mixes air with water--creating a column of millions of tiny micro-bubbles. These tiny micro-bubbles provide an enormous surface area for the adsorption of organic compounds and waste products. The impeller's unique grooved paddle blades remain rigid during rotation, pushing more water and increasing contact time while still hacking those bubbles into a dense froth. Paddle blade impellers move up to twice the volume of water compared to other needle-wheel type skimmers.