Penn-Plax Inc.

Cascade™ 300 Hang-on Filter – 300 GPH – Up to 100 Gallons provides physical, chemical, and biological filtration to help maintain clean, clear aquarium water. Designed for aquariums up to 100 gallons, it features adjustable water flow, disposable filter cartridges, a Bio-Sponge, and a Bio-Falls system to support water quality and oxygenation.