Cad Lights PLS 50 Elite Pipeless Protein skimmer Aquarium capacity: 5 gallons to 60 gallons Dimensions: 3.25 X 3.25" X 15" Improved to work in a wider range of water levels 4-7.5 Inches Water intake and 25-percent larger collection cup and neck and quicker draining New simplified universal skimmer mount with single screw height adjustment