Keep your tank clear with Tetra Whisper Filter Cartridges. Activated carbon and double sided mesh keep aquarium water clean and free of debris and fish waste. Cartridges come pre-assembled and ready to use!

• Ultra activated carbon absorbs odor and discoloration
• Dense dual sided mesh catches debris and fish waste
• Easy to use and replace once a month
• Fits Tetra Whisper PF10 and 3i Power Filters

Available Size: Small 2-Pack