Aqueon Quietflow Filter Internal E - 40G - Large
Simple yet powerful, the Aqueon Internal E-Series Filters do a great job with small tank filtration. Low-profile design attaches quickly and easily to the back of your aquarium. Easy-to-use Aqueon filter cartridges do the dirty work and slide easily into the filter. A coarse pad and Bioholder grid also help facilitate bacteria growth to enhance biological filtration. The 40G model uses L Aqueon filter cartridges and is recommended for tanks 40 gallons and less. 290 gph.