Aqueon Replacement Filter Cartridges; pack of 6 filters size S
The cartridges contain high quality activated carbon that keeps the water clean. Attaches in seconds - first flush and align bottom groove of cartridge for precise fit within filter They are easy to fit thanks to the tab with the legend in English "FRONT" that indicates the front. For optimal performance, change the filter approximately every 4 weeks. Compatible with Aqueon's QuietFlow filters: E Internal Power Filter size 10 and MiniBow Aquarium Filter sizes 1, 2.5 and 5