Fluval U2 Underwater Filter with three-stage filtration is ideal for use in fresh, marine or reptile environments. Stage 1 foam removes large particles. In stage 2, the poly/carbon cartridge traps fine debris, improves water clarity and removes impurities. In stage 3, BioMax provides optimal biological filtration efficiency.

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Enjoy improved water clarity in your aquatic environment with this underwater filter. Featuring a 3-stage filtration system with BIOMAX, the filter collects debris and removes impurities to ensure water quality. The 3-way flow rate adjusts for output flexibility, while the flip-top design makes cleaning simple. Achieve better water quality in your aquarium with the Fluval Underwater Filter. Featuring a 3-stage filtration system, this filter employs the biological strength of BIOMAX to trap debris, remove impurities and improve overall water clarity. The adjustable 3-way flow rate lets you control the filter's output for efficient, customized use. The flip-top design allows for easy maintenance, so you have more time to enjoy the beauty of a clean aquatic environment. Improves water quality in aquatic environments Flip-top design provides easy maintenance 3-stage filtration system with BIOMAX removes debris and collects impurities in the water Adjustable3-way flow rate allows output flexibility Comes with 2 foam pads and 2 poly/carbon cartridges for effective filtering