Whisper Bio-Bag Refill Cartridge

Got it on line,alot cheaper,plus they don't carry it in the store.

Have been using this product for years. After shopping the Internet for this product I found the best price at Walmart on line. It was delivered site to store in a timely manner. I will use this service in the future.

Is very efficient and product lasts longer for one use than one would expect. My fish tanks stay cleaner for a longer period of time which makes me and my fish very happy.

The replacement filters cleard up my water within an hour after installation. The value ended up being less than $1.00 per replacement. Good quality and deal.

I have used the Whisper filters and products for many years and find them affordable and easy to use. The filters last well, have replaceable parts, are quiet, and work great. Filter bags can be changed in about 30 seconds: just slide the holder into the bag, cut open the carbon pouch and pour it into the bag, snap on the top piece, then rinse under water to remove carbon residue. Pull out old filter bag, and insert the new bag into slot. This is not a replacement for cleaning the aquarium! Water still needs to be syphoned out (and debris removed from the bottom) - monthly is best!