The Fluval 307 external aquarium filter is a very powerful, completely equipped and very quiet external filter for aquariums up to 330 l. The 07 series marks the 7th incarnation in 4 decades of Fluvals top selling canister filter family worldwide. Not only does the latest generation incorporate the power and reliability youve come to expect from the leader in aquatic filtration, but it also features several new performance upgrades that make it up to 25% quieter and more robust, energy-efficient, flexible and easier to use than ever before. A lot of new details, such as the improved suction aid, the new prefilter or the new feets make the Fluval 307 very comfortable.Fluval 307 External Aquarium Filter+ Fluval eTEC (Efficient Technology) construction employs cutting-edge design, materials & manufacturing methods to deliver powerful pump performance, reduced energy consumption & ultra-quiet operation+ powerful motor generates constant pumping power and pressure that endures over time+