Tetra Whisper Bio-Bag Filter Cartridges For Aquariums - Unassembled Medium (Pack of 12)

Good price and more floss but does not work on my marineland unfortunately.

Perfect fit and great price.

Holder broken but made some adjustments and made it work

Value for money. Works well.

These filters are really nice, easy to use and a great price. I will be buying again.

Great! Just what I needed easy to put together and effective!

Use these for our turtle tank. Turtles are super gross, and these filters do get dirty pretty quickly, but they keep the water clean! We try to wash the filters out at least once so we arent constantly changing them, and that helps cut back on costs. Also, careful how much is fed, and do periodic tank and pump cleanings to help keep everything running smoothly. The turtles seem to be happy. ;-)

It works exactly like its suppose to, and the price is very reasonable

Very easy assembly and very cheap. Way cheaper than the cartridges at PetSmart or Petco. Not too cheap in terms if quality, takes a few months to fall apart but since its so cheap and comes in a large pack, not a problem.

Product was as expected