The 20 inch x 4.5 inch sediment water filter by Tier1 (50 Micron) is sized 20 x 4.5 inches and helps reduce dirt, sand, sediment, and silt in your water. Spun wound polypropylene filter media reduces these contaminants at a size as small as 50 microns and helps inhibit the growth of bacteria. The graded density of this filter gives it a much greater dirt-holding capacity making it ideal as a pre-filter for reverse osmosis (RO) systems, drinking water systems, and more. This Tier1 product will deliver the high quality water you deserve at a more affordable price. Order the 20 inch x 4.5 inch sediment water filter by Tier1 (50 Micron) today!