TETRA Whisper® Bio-Bag® Replacement Cartridges Size:Medium - 6 Pack Mixed Tocopherols (natural preservative)

Mixed Tocopherols (natural preservative)

3% Nitrate Nitrogen 0

Ideally suited for use with reverse osmosis or deionized water or any mineral deficient water

perfect for nervous cats

black carpet beetles

TETRA Whisper® Bio-Bag® Replacement Cartridges Size:Medium - 6 Pack Mixed Tocopherols (natural preservative)For the ultimate in convenience, choose Assembled Whisper Bio Bag Cartridges. Packages are color coded, making it easier than ever to remember which size to purchase. Fits: Small 3i Internal Medium PF10 Power Filter, 10i Internal and Reptofilter 90 GPH Large 20, 30,40 and 60 Power Filters and 20i & 40i Internals Instructions Rinse Bio Bag under cool tap water to remove carbon dust. Open lid and insert Bio Bag into filter. Replace clogged Bio Bag when