Penn-Plax Cascade 600 Replacement Bio-Sponge - 1 Pack Aquarium Filter Sponge for CIF3 Submersible Internal Media Filter - Easy-to-Clean - Freshwater & Saltwater Aquariums - Black, 2.5 x 3 x 5.5 Inches

The Penn-Plax Cascade 600 Replacement Bio-Sponge helps support clearer aquarium water through efficient mechanical and biological filtration in the Cascade 600 Fully Submersible Internal Filter (CIF3). This reusable filter sponge captures debris, waste, and uneaten food while promoting a balanced aquatic environment. Rinse and reuse to extend performance. Each black bio-sponge fits securely within the Cascade 600 Internal Filter for steady water movement and consistent filtration. For best results, rinse in aquarium water to preserve aquatic micro-life. Measures approximately 2.5 x 3 x 5.5 inches.

• 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.