Fluval Internal Filter U3 Filter_FX4 ensuring the health and well-being

ensuring the health and well-being of your aquatic pets

producing the optimal bubble size for maximum protein collection

flexible and easier to use than ever before

The result is less time-consuming

- Easy accessible top & front

Fluval Internal Filter U3 Filter_FX4 ensuring the health and well-beingFluval U have become the world's most popular underwater filters having sold over 1. 4 million units globally and are renowned for their performance and reliability. Fluval U filter offers the perfect solutions for aquarium set ups when external filtration is not possible and give creative possibilities for water movement and crucial aeration while providing complete and efficient 3 stage filtration. Fluval believe that no product is perfect though