External filters are an excellent option for medium sized aquariums and upwards. Their large size and power means they are the most suitable option for larger aquariums, or those that are heavily stocked or house messy fish which produce a lot of waste. Excellent for aquariums housing large and/or big groups of cichlids, carnivorous fish species, oddballs, stingrays etc. They are also a great option for those who wish to invest a bit more in a filtration system in order to cut back on aquarium maintenance. A larger filter means larger surface area for beneficial bacteria which means more waste can be broken down. Being an external filter there is no large unit that sits inside the aquarium itself, just some intake and outlet pipes, this makes it easier to create a more natural aquascape and also gives your fish more room to swim! It is worth remembering the clean out your filter impellor regularly in order to keep your filter working to its full potential.
The Fluval FX4 circulates and filters 2650 litres of water an hour and has an astounding filter media capacity that produces the cleanest and healthiest results ever. Filtering media can easily be placed in a removable stack of media baskets which is at the heart of Fluval’s multi-stage filtration. The baskets are precision-engineered to eliminate water by-pass, making filtration more efficient. The baskets can hold a total of 3.9 litres of media and can be stacked in the precise combination of layers that will work best for your aquarium. Each one is lined with a foam insert for effective mechanical pre-filtering. Instant-release T-handles let you lift and separate the baskets quickly and easily, making routine maintenance simpler.
Max Water Column Height
40 x 40 x 42 cm
Includes Filter Media Fluval FX4 comes with all the essential filtering media to provide complete and effective filtration immediately. No need to purchase additional media.
Enhanced Motor Technology The FX4 is powered by a more efficient motor, which provides better performance while consuming 10% less electricity than its predecessor.
Intelligent PumpTechnology Fluval FX4 also features Smart Pump Technology, an advanced technological feature that continually monitors the pump, constantly measuring impeller speed and force to ensure powerful output and energy efficiency. It also manages the filter’s self-starting feature and evacuates air that may enter or build up within the filtration system. On a 12-hour cycle, the pump will pause and allow trapped air to escape, ensuring the best filtration efficiency at all times. Easy Installation & Maintenance
FX4 comes with all the user-friendly features that have consistently put FX aquarium filters at the head of its class when it comes to installation and maintenance.
Valves positioned at convenient 45-degree angle for easy installation and rotation
Anti-clog, telescopic strainer ensures continuous water flow
Multi-directional output nozzles can be fully adjusted to create customized water flows
Utility Valve with drain hose for easy maintenance and flushing of canister
Rubberized feet help ensure quiet operation
Compact 41.9 cm (16.5 in) tall design - easily fits under most aquariums
Self-starting - Smart Pump primes the filter for you
Delivery costs for your order will be calculated during the checkout process using your designated delivery address and chosen delivery method. You will only pay one delivery charge for your order and this will be calculated on your entire basket after you have entered your delivery address. If for any reason your products are not deliverable to your chosen delivery address, the checkout will inform you of this before your order is submitted.
Our chosen couriers are DPD and Royal Mail. If an order is dispatched directly from a manufacturer then you may have a different courier delivering your order. Full tracking details for all orders sent by DPD will be provided when your order is shipped. You can choose ‘Express Courier’ to receive this service on any standard order. Any order sent from our suppliers, or with DPD will only be delivered Monday - Friday.
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We do not ship orders internationally.
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