Photo 1 of 12 Pack Replacement Small Size Cartridges for Tetra Whisper Small Fish Tanks Filter; Refilled Filter Cartridges S Size for Aquarium Kits 3-10 Gallons

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Photo 1 of 12 Pack Replacement Small Size Cartridges for Tetra Whisper Small Fish Tanks Filter; Refilled Filter Cartridges S Size for Aquarium Kits 3-10 GallonsPhoto 2 of 12 Pack Replacement Small Size Cartridges for Tetra Whisper Small Fish Tanks Filter; Refilled Filter Cartridges S Size for Aquarium Kits 3-10 Gallons