Fluval U3 Underwater Aquarium Filter System
The Fluval U3 Underwater Aquarium Filter System (A475) is a 3 stage aquarium filter unit for aquariums up to 40 gallons. The Fluval U3 Aquarium Filter System uses three stages for superior water quality and recirculation in aquariums, including a foam pad mechanical filter, a combination chemical carbon and poly foam filter, as well as an advanced Fluval BioMax biological aquarium filter media. The three aquarium filters used in the Fluval U3 Aquarium Filter System include:
- Stage 1 - Mechanical Filter: The Fluval U3 Foam Pad Filter (A487) for the Fluval U3 Underwater Aquarium Filter System uses porous foam to capture large particles and impurities such as dirt, sediment, sand, rust, limescale, hair, waste, and more
- Stage 2 - Combination Chemical Filter + Secondary Mechnical Filter: The Fluval Poly Carbon Filter Cartridge (A491) for the Fluval U3 Underwater Aquarium Filter System is a dual sided filter which has a dense polyester foam pad filter layer on one side to remove fine debris and very small particulates while the other side is composed of activated carbon to improve water clarity and further reduce chemicals, odors, colors, and other impurities
- Stage 3 - Biological Filter: The Fluval BioMax Filter Media (A495) for the Fluval U3 Underwater Aquarium Filter System is enriched with oxygen and provides beneficial bacterial growth to reduce toxic ammonia and nitrite for a cleaner and healthier aquarium
The Fluval U3 Aquarium Filtration System is engineered for top performance in aquariums up to 40 gallons, providing maximum filter surface area and optimum filter dwell times to provide superior aquarium filtration and water recirculation. Compared to many other aquarium filters, the Fluval U3 Underwater aquarium filter runs smoothly and quietly. Equipped with a flip top lid, it is designed for easy maintenance and quick filter changes.
The Fluval U3 Aquarium Filter System is also known by Hagen part number A-475.
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