Fluval FX5 canister filter for sale (Now replaced by Fluval FX6 Filter). The Fluval FX-5 is a large capacity, multi-stage external canister filter system.This canister filter as an output of 3.500 L/H, enabling precise management of water conditions for aquariums as large as 1,500 L. A self-priming instant-start system that eliminates the need for manual siphoning. Unique click-fit AquaStop Valves that regulate water flow, rotate at 55 degree angles and allow for fast set-up and leak-proof maintenance. This self-priming system provides plug-in-and-start convenience. Lift-out stack of media baskets.A purge valve that allows for partial discharge of debris without needing to move the unit Multi-directional twin output nozzles to create specific water flows.