Easy‑to‑replace disposable carbon cartridge for the Penn‑Plax Cascade 400 Internal Filter. Helps maintain clean, clear, odor‑free water. Replace monthly for best results.

Keep your aquarium water clean, clear, and healthy with the Penn‑Plax Cascade 400 Internal Filter Disposable Carbon Cartridge. Designed specifically for the Cascade 400 Internal Filter, this ready‑to‑use replacement cartridge makes maintenance quick and effortless.

Each cartridge is packed with high‑quality activated carbon that removes discoloration, odors, and dissolved organic waste — improving water clarity and overall tank health. Penn‑Plax recommends replacing the cartridge monthly to maintain peak filtration performance, especially in tanks with heavier bioloads.

Whether you’re performing routine maintenance or restoring filtration efficiency, this disposable carbon cartridge ensures your Cascade 400 continues to deliver reliable, high‑quality water purification.

⭐ Key Benefits (Bullet Points)

• Designed for the Cascade 400 Internal Filter

• Disposable carbon cartridge for easy, mess‑free replacement

• Improves water clarity by removing discoloration and impurities

• Helps eliminate odors for a fresher, healthier aquarium

• Quick and easy to change — no complicated setup

• Replace monthly for optimum water quality

• Ready to use right out of the box