307/407 Nitrite Remover Pad, Replacement Aquarium Canister Filter Media, 6-Pack

For best results, replace monthly or as required after testing water. Included Components 307/407 Nitrite Remover Pad, 6pcs. Style Nitrite Remover. Size 306\/406, 307\/407 Nitrite Remover. Includes 6 Nitrite Remover pads for use in freshwater and saltwater aquariums.

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