4" x 12" 100 Micron Mesh Filter Sock

Filter Socks are an essential part of aquarium filtration. They remove excess food, detritus, organic wastes, and other particulates to give you crystal clear water. Specs: 100 Micron Filtration Standard 4 inch ring - made of high quality thick plastic unlike other socks that use inferior plastics. Fits all 4" filter sock holders. Nylon Monofilament Mesh - is woven from single-fiber threads. The openings are square and uniform using this material gives the socks excellent strength. Easy to clean - Mesh filter socks are easier to clean than felt socks. When your filter sock needs to be cleaned we include washing instructions in every order to get the most uses out of your socks. *These socks do not fit IceCap sumps