8 Pack Large Aquarium Fish Tank Filter Cartridges with Filter Pad, Compatible with Aqueon QuietFlow Filter LED PRO Size 20,30,50,75/Power Filter Size 20,30,50,55/75, E Internal Size 40 Canister Filter

【Excellent Compatibility】: Large Filter Cartridges for Aqueon work with with QuietFlow LED PRO Power Filter Sizes 20, 30, 50, 75, QuietFlow Power Filter Sizes 20, 30, 50, 55/75, QuietFlow'E Internal Power Filter Size 40, QuietFlow Canister Filter Sizes 200, 300, 400 and Zilla size 40 【Efficient Water Purification】: Our filter cartridge consists of double high-density cotton, activated carbon, new filter media-Zeolite. Double high-density cotton can filter impurities and debris from the water.3 times activated carbon can effectively absorb 99% of the debris and odors. Zeolite further absorbs heavy metals and balances PH 【New filter medium - zeolite】: Our zeolite is a reprocessed zeolite. Our spherical zeolite has a stronger cleaning ability, and it can adsorb heavy metals and other harmful ingredients. Balance PH to achieve a stable water state and improve the efficiency of fertilization of aquatic plants 【Quick Install】: Turn off the filter and remove the used cartridge and flush the new cartridge under water to remove dust. After rinsing, insert the cartridge into the flushing chamber and make sure the filter cartridge fits completely into the chamber 【High Quality Filter Cartridges】: We are committed to using high quality filter materials to purify water impurities efficiently. And we recommend that you change the filter every 2 to 4 weeks