Aquatic Experts MESH Filter Socks 200 Micron - 4 Inch Ring by 14 Inch Long - Long - Aquarium Filter Bags - Custom Made in The USA TRAPS LARGE PARTICLES - Our 200 micron mesh filter socks have an open weave pattern designed to ONLY trap larger particles, snails, fish and other items. 200 micron mesh socks are unlike 200 micron felt socks which trap large to fine debris floating in the water. Trapping only larger particles means these socks will LAST LONGER AND NEED TO BE CLEANED LESS OFTEN than felt socks. HIGH QUALITY - Polypropylene fiber strands are woven into a specific pattern and are thermally bonded to create a STRONG, DURABLE mesh screen, heavy duty stitching is then used to create a LONG LASTING FILTER SOCK. You will receive eight 4 inch by 14-inch-long mesh filter socks with a 4-inch diameter plastic ring that will fit most sump holders. THESE DO NOT FIT RED SEA FILTERS. EASY TO CLEAN AND REUSE: Our heavy duty mesh filter socks are constructed to be cleaned and reused many times. They can easily be rinsed in a sink, or for a more thorough cleaning they are TOUGH ENOUGH TO BE CLEANED IN A WASHING MACHINE. Just follow our cleaning steps. SPECIALTY SOCKS: Mesh socks are for hobbyists who want to keep snails and other larger size items from entering their pumps and want to clean their filter socks less often. Because mesh socks do not trap fine debris from the water, it may be best to rotate mesh socks with felt socks to keep aquarium water crystal clear. To see all of our socks, sizes, and quantities simply click above on - by Aquatic Experts - under the title. TIPS AND RISK-FREE GUARANTEE! You will receive our professional cleaning Instructions included with your filter socks. In addition, we are COMMITTED TO OUR 100% CUSTOMER SATISFACTION so if you find that you are not 5-Star happy with us or our products, please contact us and we will do whatever it takes to make sure you are 100% satisfied.