Graywolf
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Sometimes folks confuse thread count with opening size. The more threads per inch, the less space between them, so the smaller the micron size, unless the threads are made smaller to compensate.
Non woven filters don't have thread count, so typically just go by the size of their pores in microns, which is 3.9 X-5, or .000039 inches per micron. The lower the number, the smaller its pores,
Non woven filters don't have thread count, so typically just go by the size of their pores in microns, which is 3.9 X-5, or .000039 inches per micron. The lower the number, the smaller its pores,