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About product and suppliers:
            3,804 20 micron filter products are offered for sale by suppliers on Alibaba.com, of which water treatment accounts for 17%, filter meshes accounts for 13%, and other industrial filtration equipment accounts for 8%. 

A wide variety of 20 micron filter options are available to you, 

There are 3,006 suppliers who sells 20 micron filter on Alibaba.com, mainly located in Asia. The top countries of suppliers are United Arab Emirates, China, and Taiwan, China, from which the percentage of 20 micron filter supply is 1%, 94%, and 2% respectively.