Aquatop Classic Aqua Flow CAF-250 Internal Sponge Filter Black

Aquarists have been using sponge filters for decades and there's a reason these simple devices are so popular--they work! Aquatopís Classic Aqua Flow Sponge Filters are extremely simple to install and very economical to operate. The largest in the CAF Series, the CAF-250 can be used as a stand-alone filter or as a secondary filter for systems up to 250 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. Can be used as stand alone or secondary filter Simple to use Easy to install