Hang on filters are designed to be clipped onto the back of your aquarium. They are ideal for garden aquariums or any other, where a submersible filter would take up too much space. They provide very high levels of filtration. Hang on filters provide return sales as the carbon filter cartridges are a consumable item that needs to be replaced every 6 - 8 weeks. Features & Benefits: Flow regulator which can be used to adjust the water flow through the filter The combination of wool, carbon and bio grid provides a complete and very compact filtration solution Available in a range of sizes Excellent oxygen levels achieved due to the design Built in power heads offer high water turn over rates High quality media content 2 + 1 Year Guarantee Designed to be clipped onto the back of your aquarium Ideal for any aquarium where a submersible filter would take up too much space Replacement Parts/Media: 25054i - Impeller Set - 100 ClearView 54i 25054S - Sponge - 100 ClearView (2pk) 54S 25054C - Cartridge Carbon - 100 ClearView (2pk) 54C Additional Info: Item No: 11526 Description: 100 ClearView Hang On Filter 180L/hr For Aquariums up to (L/G): 40L/9G Max. Flow Rate: 180L/hr Wattage: 3W Voltage: 230V/50Hz Suitable for: Coldwater, Tropical & Marine