Whisper Bio Bag Cartridge Large 12 pk Unassembled
Thursday, March 11th, 2010Whisper Bio Bag Cartridge Large 12 pk Unassembled

Unassembled Whisper Bio Bags include packets of Ultra-Activated carbon for easy setup. Simple to setup and easy to use. Removes odors and discoloration. Fits Whisper Power Filters 20i, 40i, C, 20, 30, 40, and 60. Also fits Tetratec power filters.
User Ratings and Reviews
5 Stars Good Filters
They work just as they are supposed to. I have been using Whisper Bags for years and will continue to do so.
5 Stars Great price
Great price. Locally I would have paid $38 for two boxes, plus the gas to get there. This deal is way better.
5 Stars Easy to use
Bio-Bag cartridges are a no mess, easy-to-use product that does a great job of keeping my fish healthy and happy.
We have been doing a whole house remodel for over 18 months so our poor aquarium has not been getting the attention it deserves. And yet even when the water is just trickling through the old filter (because the old filter is totally clogged because I haven’t changed it in God knows how long), I can pop in a new one and turn it back on and “presto!” clear water again. And when I FINALLY drag out the gravel vac to suck all the nasty stuff up, the Bio-Bag turns the brown sludge back into clean, clear water in less than an hour. Needless to say, my fish think Bio-Bags are the BEST!
5 Stars good deal for my Koi.
I have two rather large Koi in a 30 gallon aquarium. They cloud up the watter pretty rapidly and these filters need to be changed frequently. Nothing makes the Koi happier than a good feed and fairly clean water.
Needless to say, these are the most economical filters I have found.
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