QTY: 2PCS PFE Replacement Filter Inserts with Activated Carbon
The PFE cartridge layer is made of strong poly-fiber and collects organic debris for easy removal. Filled with AquaTop�s Activated Carbon, these replacement pads are extremely easy to use and install and help keep aquarium water crystal clear and free from odor. NOTE: AquaTop recommends replacing the Filter Insert filled with Activated Carbon every 4-6 weeks. Aquariums with heavier livestock loads may require more frequent replacement.
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