Nylon Mesh Filter Socks 200 Micron 7 Inch Ring Water, 200 Micron/Um 7 X 32 Inch "Material: Nylon Mesh , Plastic Ring Industrial Size #2,7 Inch Ring by 32 Inch Long Bag, 7" x 32" Filter Sock. 200Micron Nylon monofilament mesh filter bag Our heavy duty mesh filter socks are durable to be cleaned and reused many times ,Strong Flexible Mesh, Stainless Steel Support Ring, Hanging Strap .Provide cost-effective filtering solutions. Great for Water, Oil, Biodiesel, Fuels, Weak Acids Alkali, Organic Solvents Microorganisms Filter Sock is an essential part for wet/dry filter systems, sumps, and diy filters,this is the best form of mechanical filtration.