Penn-Plax Cascade Hang-On Aquarium Filter

Keep things fresh and flowing in your aquarium with the Penn-Plax Cascade Hang-On Aquarium Filter. This quiet filter helps deliver crystal-clear water throughout your fishy friends’ home. It features an adjustable knob for increasing or decreasing the water flow as needed—especially helpful during feeding times. It includes a disposable activated carbon and poly-fiber floss cartridge to help remove harmful toxins and keep your aquarium clean. The filter’s Bio-Fall system is designed to oxygenate your tank’s water. It also comes with a bio-sponge to help promote colonies of beneficial bacteria. And the hang-on design lets you safely mount this filter on your tank—perfect for getting the water flowing freely!