Small world aquarium filters are specifically designed for small aquariums of all shapes and sizes up to 5 gallons. Quick & easy to install, small world aquarium filters keep your water crystal clear while eliminating contaminants and maintaining a healthy environment for your fish. The small world aquarium filter & pump kit includes everything you need to provide filtration for your small aquarium. This kit includes a 110vac air pump, filter, mounting bracket and tubing. Easy to install, the filter bracket measures 4-1/2"x 1-1/2"x 1" and fits almost any small aquarium with an easy-to-replace disposable cartridge filter. Simply attached the air line (included) and plug it in. The high quality disposable cartridge consists of carbon & zeolite for chemical filtration combined with a bio foam sponge. The zeolite crystals eliminate ammonia while the top quality activated carbon removes harmful gases & odors. The bio foam helps promote biological filtration leaving you with crystal clear water. The small world aquarium filter & pump kit has everything you need to help keep your small aquarium healthy and looking beautiful.