Supreme Ovation Submersible Filters are perfect for all types of tropical fish aquariums and todays complex aquatic terrarium habitats. It is a reliable smooth running power filter that provides excellent mechanical biological and chemical filtration. Use in aquariums and terrariums Features an adjustable air regulator for aeration flow control Filter kit includes power filter filtration sponge activated carbon cartridge and a modular tubing kit Specifications Ovation 210 Dimensions 1.25 Inch L x 1.5 Inch W x 5.25 Inch H Flow rate 53 GPH Aquarium size Up to 15 Gallons The unique Supreme Ovation Filter design provides positive filtration which prevents the bypassing of unfiltered water. Supreme Ovation Submersible Filters can be placed in any position standing up or lying down in the most inconspicuous space. The dual media filtering system includes a sponge for mechanical filtration activated carbon to keep the water clean and odor free as well as an oxygenating aeration head that can be regulated to control air flow. Changing of the media is quick and simple making regular maintenance a snap. Replacement Filtration Pak includes 1 filtration sponge and 1 activated carbon cartridge. The modular tubing fits into the top portion of the filter see directions and picture on the box.