Description:

The FX4 bridges the gap between the Fluval 406 and the FX6 canister filter, making it an ideal choice for aquariums up to 250 US Gal (1000 L).

Key Features:

• Multi-stage filter pumps out 700 gallons (2650 L) of water per hour
• Smart Pump^TM - advanced microchip technology continuously monitors and optimizes pump performance 
• Self-starting - just add water, plug in and Smart Pump^TM will take over. Trapped air auto-evacuated every 12 hours to ensure maximum efficiency
• Easy water changes eliminate need to carry heavy buckets. Simply attach hosing to output (Kit sold separately) and Smart Pump^TM does the rest
• Removable, stackable media baskets eliminate water bypass and hold a total of 1 gallon (3.9 L) of media
• All filter media included - mechanical, chemical and biological
• Aqua-Stop valves with leak-proof Click-Fit attachment system
• 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 16.5in tall design - easily fits under most aquariums
• Made in Italy 
• For use in freshwater and saltwater aquariums