Marina Fine Filter Pads are specifically designed to fit the Marina  CF20/CF40 canister filters. These micro-fine polyester water polishing pads effectively trap micro particles and debris, leaving your aquarium water crystal clear.
 
Made of Micro-fine Polyester to Capture Micro Particles
For CF20 and CF40 Canister Filter
Ideal for use when cloudy water occurs or immediately following tank maintenance
Convenient 3-pack format
For use in freshwater and saltwater aquariums