4 x 14 Inch, 200 Micron Filter Sock - 5mm Aquarium Felt Filter Bags for Water Filtration (2-Pack)

I am very happy with how these filter socks work! It's a fair price compare to other suppliers that I've look at. I like the fact that they are only 14 inches, because my sump is a little shorter than most. And as you can see from the photo they are very effective in the process of keeping my tank very clean!

Great quality product. When you wash them just be sure to use gentle cycle other than that they perform well. They fit in any standard 4 in holder.

These work great. I collect rain water so I use one of these on the pvc pipe before my water hits the storage tank. It filters out the fine dirt and sediment so the water is crystal clear!

I gave it 4 starts because the socks are great quality but I wasn't expecting the bag to be so thick. I ended up cutting a couple of them down to fit my Fluval 406 filter. It was difficult to make it fit and I hope it still does a good job. I may not use the the 6 because of the thickness. Curious what other filtration systems others use these socks with. Please respond.Thank you in advance.

Just got them today, make sure you wash them before putting them in your tank. I wish that was in the description. My skimmer went crazy for a minute. Other than that I really cant complain. Its your basic filter sock.

Good quality filter socks and arrived quickly. Will order again in the future.

These things literally unravel. Not good quality and do not stand up to repeated cleanings.

These socks keep my tank super clean.