Fluval® U3 Underwater Filter Replacement Foam Pads - Replacement Aquarium Filter Media

The Fluval U3 Foam Pad captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. It is custom-made to fit perfectly inside the filter chamber to prevent debris bypass. The foam pad has a pore size that allows efficient water flow, less clogging and long-lasting filtration.Features: Suitable for freshwater, marine or reptile environmentsFor the Fluval U3 Underwater FiltersIncludes: Fluval U3 Foam Pad (2-pack)Intended Pet(s): FishCompatible With: Fluval U3 Underwater Filter (PetSmart Article #5139128, Hagen Model #A475)Advice for Use: NEVER use tap water to clean filter media as this will kill the beneficial bacteria that helps keep your water healthy. Rinse in a bucket with water taken from your aquarium. To ensure constant presence of beneficial bacteria, do not replace all filtration media at the same time. For best results, replace foam pads every 3-6 months.Caution: NEVER use soap or detergents, as traces of cleaning products will harm aquatic life.