Space-saving, powerful in-tank filters3-stage filtration performance and quiet operationMounts easily and discreetly inside your aquariumSpace-saving design enables the same quality and performance as external filters without the noise. Whisper In-Tank Filters offer 3-stage filtration performance and quiet operation. Mount discreetly inside your aquarium for clean, clear water and the added convenience of placing your aquarium flush against a wall. Adjusts easily to high or low water levels (as low as 2") with mounting suction cups and/or bracket. Includes one pre-assembled Whisper Bio-Bag filter cartridge. Additional filter cartridges available here.ModelgphAquarium Size10i902-10 gallons20i12510-20 gallons40i17020-40 gallonsPlease click on "More Information" for installation instructions and helpful hints.

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