About This

• Efficient Filtration Support - Maintain clean, balanced water with these dual-sided aquarium filter cartridges featuring a fine poly-fiber floss layer that traps debris and a carbon core that helps reduce discoloration for enhanced clarity.
• Dual-Layer Design - Each cartridge features a mechanical poly-fiber floss layer and a chemical activated carbon core that work together to remove fine particles and impurities, keeping your aquarium water fresh and balanced.
• Secure, Proper Fit - Designed to fit securely into the Cascade 100 Hang-On Power Filter, these replacement cartridges ensure consistent water flow and prevent debris from bypassing the filtration system.
• Made to Endure, Sized to Perform - Built for durability, this set comes with three replacement cartridges that provide reliable filtration for 6 to 12 weeks under normal conditions. Each measures 5.5 x 3.25 x 0.75 Inches, suitable for both freshwater and marine aquariums.
• Crafted with Care - With decades of aquatic expertise, Penn-Plax designs innovative fish tank filter solutions that help hobbyists create cleaner, healthier, and more enjoyable aquarium environments for their fish.