UNIVERSAL FILTER MEDIA BAG: Our Ultra fine mesh design is optimized to work with any type of chemical filter media, preventing resins from escaping into your pump. THESE BAGS DO NOT WORK FOR PURIGEN

ELIMINATES ODOR AND DISCOLORATION! Our activated carbon, also known as activated charcoal, removes foul odors from aquarium water LEAVING A CRISP CLEAN SMELL. Our active carbon has large internal surface area which rapidly adsorbs dissolved pollutants from water including yellow-brown tint, toxins, chlorine, most medications, and some heavy metals. Our Premium carbon works best in our FINE MESH FILTER MEDIA BAGS or similar bag.

CUSTOMER AND PROFESSIONALS CHOICE - Our true DUAL DENSITY FILTER ROLL is the TOP CHOICE for cut to size aquarium filter material. Our NEW 3rd generation dual layer aquarium filter pads are even thicker than before. The top layer's open fiber construction traps LARGER PARTICLES while the bottom layer's dense fiber network TRAPS FINE PARTICLES - working together to produce crystal clear water in your aquarium.

ENVIRONMENTALLY FRIENDLY - All our products are completely safe for all fish and other aquatic life.