Reef Octopus® BH100SS HOB with surface skimmer Dimensions: 8" x 3.25" x 17" Rated up to 75 gallons Powered by 1 OTP 1000 pump Wattage: 13w Air draw: 180 L/H (6-7SCFH) High performance venturi air injection system 1 year warranty on skimmer body and pump - The BH-100SS is similar to the BH-100 but instead of having the skimmer pump taking water from 4 inches below the surface of the aquarium this model has a surface cup that allows the protein rich surface water drained into the surface collection cup which allows for better protein skimming efficiency. This Reef Octopus skimmers is powered by the Hailea OTP 1000 pump. Built with high quality acrylic. The Octopus skimmers uses metric plumbing parts. The pump has an improved venturi design and pinwheel impeller.