Supreme (Danner) ASP11844 4-Pack Bio-Matrix CarbonPolyester Filter Pad for Aquarium

Danner Supreme replacement cartridge for skilter filter. Carbon embedded sponge material for the absorption of impurities odors and discoloration in your water. The activated carbon impregnated polyester filter provides chemical filtration. This package contains 4 die cut carbon polyester pads to fit into the Bio Matrix snap apart cartridge.