Tetra Whisper Bio-Bag Unassembled,Disposable Filter Cartridges for Aquariums, Large, 12 Count

The Tetra filter and cartridges do a great job keeping my turtle's tank clean and safe! I've used this product for over 8 years. Walmart does a great job keeping them in stock!

long lasting and rssy to use

Usually get them somewhere else but tried Walmart and perfect.

I be used Tetra products for years and have no complaints

Enjoy using these to help keep my turtle tank clean. It comes in a good quality pack at a good price. Helps to keep the water clean longer.

I don't like that you have to assemble the filters before you put them in but they work well. The 12 pack is definitely the cheapest per filter. I only had to return because I bought the wrong size. Overall, it works well and I like that each filter is less than a dollar.

Great price for a dozen filters, makes it easy to open a pre-measured carbon pouch and pour into filter media. Wish it had 3 plastic frames to allow for preparing additional filters for those days when pressed for time. This a real cost saver and it helps to contain the waste and therefore helps the environment. It is so easy that your pre-teen could prepare and change the filters in just a few minutes. No available in all stores, but always on-line

Delivery came early prices excellent that's exactly what I needed to do.

So, while this does the job, it is rather annoying having to put the thing together myself. I only bought this because the ready to go ones are out of stock. It'll do in a situation like that, but I definitely won't order them again if the others are available.

picked up the package and heard rattling, knew something was wrong right then. opened the box and all the packets of carbon were busted and spilled all in the box. the manfacturer sealed them wrong apparently, but now i cant use these....