Fluval U2 Underwater Filter - For Aquariums 110 L (30 US Gal) Saltwater Substrates Anti-rust coating does not pollute

Anti-rust coating does not pollute the living environment of aquatic plants and animals

or high quality fish food

Seapora Ammonia Pads lower the risk of fish stress and disease while promoting crystal clear water

integrated ATO and dosing holes makes it easy to arrange both tubing

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Fluval U2 Underwater Filter - For Aquariums 110 L (30 US Gal) Saltwater Substrates Anti-rust coating does not polluteFluval U2 Underwater Filter provides complete and efficient 3 stage filtration, including BioMax biological filtering, to create superior aquarium water quality. The U2 Filter includes practical and versatile features, making it ideal for application in fresh, marine and reptile environments. The filter provides the option of setting the flow output in 3 different positions, a key benchmark in underwater filtration. The adjustable 3 way flow control