20 Micron Polypropylene String Wound Sediment Filter. Polypropylene string-wound sediment filter provides optimum particulate, sediment and solids filtering capacity. Low Cost Alternative to name brand filters. Fits any standard 2.5 x 10 filter housing. Large void volume design for low-cost, reliable filtration performance with high contaminant holding capacity. Polypropylene media for chemical resistance. Food grade ingredients for potable water. No leachables to contaminate downstream. Micron Rating: 20m. Flow Rate: 5 Gallon per minute.