Whisper Bio-Bag Replacement Cartridges, Small, 6 Pack

Whisper® Bio-Bag® Replacement Cartridges Size Small 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. For best results, change Bio-Bag monthly or sooner, if required. Fits: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 Bio-Bag Size BFA Item # Small 6 Pack TE19550 1. Rinse Bio-Bag• under cool tap water to remove carbon dust. 2. Open lid and insert Bio-Bag into filter. 3. Replace clogged Bio-Bag when there is reduced water flow out of the filter.