- Packed 2 pieces per box
- Developed to remove discoloration, dyes and medications
- Removes noxious odors

Carbon Filter Pad with high-quality impregnated active carbon has been specially developed as a fine filter medium for the Fluval 4 Plus Underwater Filter. It is particularly suited to filtering out harmful liquid substances, dyes, medicines and extremely fine suspended particles and contaminants. It improves the clarity, color and smell of the water. It does not alter the properties of aquarium water.