Keeping a clean and clear aquarium can be daunting. That's why Tetra^® brand created Whisper BIO-Bags filter technology for easier maintenance and healthier fish. These disposable filter cartridges are easy to use and work to keep your fish tank in tip-top condition. The ultra-activated carbon is designed to absorb discoloration, contaminants and foul odors while the dense, double-sided mesh works to trap debris and fish waste. 

• Convenient, easy-to-use disposable filter replacement
• Activated carbon absorbs discoloration, contaminants, and odours 
• Double-sided dense mesh traps fish waste and debris 
• Compatible with Tetra Whisper Power Filters 10, 10i, E, J, Microfilter, PF10

Available Sizes: Medium Single Pack, Medium 3-Pack