Key Features:

• Maximum Mechanical filtration
• Traps micro-particles and debris for sparkling water
• Ideal for use in cloudy aquariums or after routine maintenance
• Specifically designed to fit the Fluval 307/407 and 306/406 canister filters
• For best results when clearing a cloudy aquarium, use in conjunction with Fluval Cloudy Water Treatment (A8366)
• Convenient 6-pack format
• For use in freshwater and saltwater aquariums