Tetra Whisper Bio-Bag Filter Aquarium Cartridges, Large Filter for Freshwater and Marine Fish, Removes Odors and Discoloration, Easy to Assemble, 12 Large Blue Filters
About this item
UNASSEMBLED REPLACEMENT CARBON FILTER Keeps aquarium water crystal clear – removes odors and discoloration
CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
FITS TETRA WHISPER WATER FILTERS Color coded to make it simple to remember which replacement cartridge size to purchase