Reliable Filtration Performance - Keep your aquarium fresh and cleaner! This replacement bio-sponge for the Cascade 600 (CIF3) captures dirt and debris, supports steady water flow and improved tank clarity.
Healthier Aquatic Life - Promotes balanced water by supporting mechanical and biological filtration - perfect for creating a clean, thriving home for your freshwater or saltwater fish.
Easy Clean, Easy Reuse - Rinse in aquarium water, reuse, and keep filtering! Designed for long-lasting use, it helps maintain natural cleaning balance and dependable filtration with minimal effort.
Secure, Custom Fit - Comes with one black sponge measuring 2.5 x 3 x 5.5 Inches. Custom-shaped to fit the Cascade 600 Fully Submersible Internal Filter (CIF3) for smooth, steady performance.
Inspired by Penn-Plax: With decades of experience creating trusted pet products, Penn-Plax designs habitats that blend reliability and ease - helping pet owners care for their small companions with confidence and creativity.
