Thumbnail Filmstrip of AQUATOP SP913UV-RCI 2 Pack Replacement Cartridge Insert for the SP9-UV and SP13-UV Images
QTY: 2PCS SP913UV Replacement Filter Inserts with Activated Carbon The SP-UV 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.