Rinse filter cartridge under cool tap water to remove excess dust.Remove the used filter cartridge at the back of the BioCube filter area by pulling straight up. Discard used filter cartridge.Slide new cartridge straight down along the built-in guides in the filter area, making sure that the white media element faces the front of the filter.Note: For optimum efficiency, cartridges should be replaced every four-six weeks.
Oceanic BioCube Original Replacement Filter Cartridges
Pack Size: Pack of 2 cartridges
