The Eheim Ecco Pro Series Canister Filters are designed with innovative technology combined with simple operation and energy efficiency. The Eheim Ecco Pro Series Canister filters provide three stage mechanical, chemical and biological aquarium filtration for freshwater or saltwater aquariums. Each Eheim Ecco Series Canister Filter comes complete with aquarium filter media, including Ehiem Substrat Pro, and are ready for operation. Practical aquarium filter media containers, safety hose connections and shut-off taps make operation and maintenance simple. The Ecco Pro Canister Filters have convenient interlocking media baskets that allow for versatility and also help to prevent aquarium water from bypassing the aquarium filter media. The baskets also allow for easy maintenance. A long service life can be expected with proper media setup. A unique multifunction handle highlights this canister filter. In addition to locking and unlocking the filter and being used as a carrying handle, it also operates the filter's self priming system.