For Fluval FX4 / FX5 / FX6 Canister Filters A-228 12 Foam Filter Pads

Designed exclusively for Hagen's Fluval FX4, FX5, and FX6 Filtration Systems, these foam blocks perform mechanical filtration, the first stage of filtration.  Foam filter pads capture large particles and prevent bypass.  In freshwater and marine aquariums, they enhance biological filtration.  Use with Fluval FX4, FX5 and FX6 external canister filters.

Here are some details about these foam filter blocks:

Filters mechanically

Particles & debris are trapped

Improves biological filtration

Suitable for freshwater and marine environments

For long-lasting filtration, it provides efficient water flow with less clogging

Environmentally friendly bulk packaging

YOU ARE GUARANTEED TO BE SATISFED!