Felt Filter Sock with Plastic Ring 200 micron - 2.75" Diameter x 7" Length

Great product, but prices should be lowered.

Fast and smooth shipping.

I bought these hoping to replace some other filter socks that I purchased elsewhere, that are lasting less than 24hrs before needing changed. Unfortunately these are doing the same thing. Out of the package I rinsed it with RODI and put it in my aquarium late afternoon/early evening. When I got up the next morning the filter sock was plugged and water was backed up over the top of the sock holder, but the sock itself was still white and looked unused. I guess I'll have to figure out some other type of filter solution.