Clean water is a must for a happy aquarium. The Aqueon Large Internal Filter Replacement Cartridge is a two-stage filter providing mechanical and chemical filtration. In the first stage a dense, foam outer layer removes dirt and particulates. The second stage uses activated carbon to remove odor, organics and discoloration. The cartridge’s rigid frame means that water passes through the cartridge, not around it, for optimal filtration.
Dense foam mechanical filtration removes particles and debris.
Activated carbon chemical filtration removes toxins, odors and discoloration.
Replacement required approximately every 30 days.
Cartridge can be easily rinsed to help lengthen its lifespan.
Large Cartridge fits QuietFlow Internal Filter models AT30 and AT 40 (sold separately).