Keep your fish clean and happy with the Supreme EZ Clean Dual Internal Filter for Aquariums Up to 30 gal. EZ Clean dual internal filters feature a unique top loading cartridge design for simple installation. No need to purchase a separate siphon for water change. Single cartridge filters can be used with fresh or saltwater aquariums for added versatility. Patented dual cartridge system with replaceable media EZ Clean dual internal filters feature a unique top loading cartridge design for simple installation No need to purchase a separate siphon for water change Single cartridge filters can be used with fresh or saltwater aquariums for added versatility For aquariums up to 30 gal. Sleek black color for a timeless looking finish Dimensions of the filter: 5 in. x 2 in. x 4 in. Danner Manufacturing Inc, Pondmaster, E.G. Danner, Growers Pump