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Fluval FX4 Canister Filter - High Performance (Up to 250 Gallons)


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Item #: HG10214

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Fluval FX4 High Performance External Canister Filter

Fluval FX4 is a high performance canister filter with many outstanding features designed to make aquarium fishkeeping easier and more convenient than ever.

This super capacity yet compact canister filter processes and circulates 450 gallons (1700 liters) of water every hour and has an astounding media capacity that produces cleaner and healthier results.

Filtering material can easily be placed in a removable stack of media baskets which is at the heart of Fluval`s multistage filtration. The baskets are precision-engineered to eliminate water by-pass, making filtration more efficient.

The baskets can hold a total of 1 gallon (3.91 liters) 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.

Fluval FX4 also features Smart Pump Technology, which provides optimal filter performance. This advanced technological feature employs an electronic circuit board that continually monitors the pump. Impeller speed and force are constantly measured 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.

Only 16.5" (42cm) in height, Fluval FX4 fits under most aquariums.

Key Features:
  • Multi-Stage Filtration produces healthy aquarium water
  • For fresh and saltwater aquariums
  • Features Smart Pump Technology for optimal filter performance, efficiency and management
  • Advanced motor technology provides better performance and reliability while consuming 10% less electricity
  • Click-Fit AquaStop Valves allow fast setup and leak-proof maintenance
  • Valves are positioned at 45 degree angles and rotate for easy installation
  • Self-starting filter-just add water and plug in-Smart Pump Technology will do the rest
  • Monthly maintenance indicator allows you to remember the date of your last filter maintenance/water change
  • Heavy-duty Anti-Clog Telescopic Strainer ensures continuous flow
  • Multi-Directional Output Nozzles can be adjusted to create specific water flows
  • Purge Valve with Drain Hose for easy maintenance and flushing of the canister
  • Optional Water change feature eliminates need to carry buckets of water-simply attach appropriate hose to the output-Smart Pump Technology will do the rest (Kit sold separately)

Technical Specifications




Aquarium Capacity:250 US Gal. (1000 L) 400 US Gal. (1500 L)
Pump Output: 700 US GPH (2650 lph) 925 US GPH (3500 lph)
Mechanical Area (foam): 217 in2 (1400 cm2) 325.5 in2 (2100 cm2)
Biological Volume: 1 US Gal. (3.91 L) 1.5 US Gal. (5.9 L)
Filtration Volume: 3.7 US Gal. (14 L) 5.28 US Gal. (20 L)
Filter Circulation: 450 US GPH (1700 lph) 563 US GPH (2130 lph)
Head Height (max.): 6.9 ft (2.1 m) 10.8 ft (3.3 m)
Wattage (120V/60Hz): 30 W 43 W
Dimensions (L x W x H): 15.75" x 15.75" x 16.5" (40 x 40 x 42 cm) 15.75" x 15.75" x 20.8" (40 x 40 x 53 cm)

What`s Included:

  • Rubber hosing
  • Rim connectors, clips and suction cups
  • Intake stem
  • Output nozzle
  • Lid fasteners
  • Filter canister
  • Utility valve and hosing
  • Drain cap
  • Pump unit (motor) and power cord
  • Rubber feet
  • Media baskets
  • 1/2 media baskets
  • Filter lid and accessories

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