Aqueon Large Filter Cartridge - 6 pk.

Aqueon Power Filter cartridges provides mechanical and chemical filtration to help keep your aquarium clean and crystal clear!

The mechanical polyester cartridge helps remove uneaten food, fish waste and particulate matter. The added carbon helps remove impurities, dissolved organics, odor and discoloration.

Easy-to-replace cartridges contain over 25% more activated carbon than similar filter cartridges. Large size cartidges fit the Aqueon 20, 30, 50 and 55/75 Power Filter models.

Aquarium Filter Basics.

4-Step Cartridge Replacement:

1. Remove cover from filter.
2. Remove used cartridge from bio-holster by pushing down gently on the holster and pulling the tab on the filter cartridge upwards. Discard used filter cartridge. Bio-holster should not be removed or cleaned, as it contains living bacteria.
3. Rinse new cartridge under cold water to remove carbon dust. Insert new cartridge into bio-holster by aligning the key slot on the cartridge with key slot on biological grid.
4. Replace cover on filter. Note: Cover will not fit properly if filter cartridge is installed incorrectly. Cartridges should be replaced when water begins to enter the filter bypass and/or the cartridge becomes clogged. Cartridges should be changed every 4-6 weeks.