The Fluval U3 Underwater Filter Media Replacement bundle includes one 2-pack of Fluval Foam Pads and one package of Fluval BioMax. The Fluval Foam Pad and Poly/Carbon Cartridge were both designed specifically for the U3 filter model. The Foam Pad captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom fit to prevent bypass, they have a pore size that allows efficient water flow with less clogging for long-lasting filtration. Fluval BioMax has a large surface area that provides optimal colonization of beneficial bacteria, which enhances the elimination of fish wastes, resulting in a healthier aquarium environment. The Fluval BioMax has more capacity than most biological filter media and allows ideal water movement throughout the media, to ensure optimal contact time for efficient biological filtration. The Fluval Foam Pad and BioMax are for freshwater, marine or reptile environments.
Fluval first broke onto the aquatic scene in 1975 by introducing the world's first 3-stage filter with synchronous motor technology – a landmark breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Above and beyond its manufacturing role, Fluval prides itself on its charitable and educational efforts that give back to the fishkeeping community, whether it means helping to fund the protection of wild coral reefs or jumping on a plane to document endangered fish species halfway around the world. Fluval's mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.