FLUVAL 307 CANISTER FILTER307 Canister Filter, 40 70 US Gal 90 330 L 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.