Tetra Filter Aquarium Cartidges, Removes Odors and Discoloration, Ready to Use, Small Whisper Filters, 6 Count Size:1 Pack(Large) Case of 12

Case of 12

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Tetra Filter Aquarium Cartidges, Removes Odors and Discoloration, Ready to Use, Small Whisper Filters, 6 Count Size:1 Pack(Large) Case of 12About this item REPLACEMENT CARBON FILTER: Keeps aquarium water crystal clear removes odors and discoloration. CATCHES DEBRIS: Dense, dual sided mesh filters debris and fish waste. CLEAN WATER MADE SIMPLE: Small size fits Tetra Whisper 3i Internal Filters. CONVENIENT: Replacement filter cartridges are fully assembled and ready to use. USAGE: Change monthly or sooner if there is reduced water flow.