Check the listing for details. Aqueon Quietflow E Internal Power Filter available in 4 sizes. Condition: New. Listed at 15.99 USD. The Aqueon QuietFlow E Internal Power Filter provides chemical, biological, and mechanical filtration for your aquarium. Its compact, efficient design makes this filter an ideal solution for smaller tanks. Suction cups and a carbon cartridge are included for quick installation and set-up. Effectively cleans and filters waterPatented QuietFlow filtration technologyEasy to install using included suction cupsIncludes carbon cartridge for chemical filtration The QuietFlow E may be installed in framed or frameless aquariums using either suction cups or hanging clips. The pump requires no priming and will automatically restart if power is ever interrupted to keep your water cycling. Includes: Carbon cartridge (chemical filtration) Bioholster (biological filtration) Coarse Media Sponge (mechanical filtration) Specifications: QuietFlow 3For aquariums up to 3 gallonsDimensions: 2.75"L x 2.75"W x 6.81"HIncludes X-Small Filter Cartridge QuietFlow 10For aquariums up to 10 gallonsDimensions: 4.69"L x 3.75"W x 6.31"HIncludes Small Filter Cartridge QuietFlow 20For aquariums up to 20 gallonsDimensions: 5.75"L x 3.94"W x 8.19"HIncludes Medium Filter Cartridge QuietFlow 40For aquariums up to 40 gallonsDimensions: 6.5"L x 5.69"W x 11.19"HIncludes Large Filter Cartridge