High strength Nylon filtration screen. Chemically inert and resistant to bases and acids alike. Easily cleaned with alcohol for re-use.You will receive a 4 pack of 50 micron screen in the size of your choosing. Screen openings width is 50 microns - all particulate smaller than 50u will pass, greater than 50u will remain.Your item is custom cut to order from new rolls of material, packed with care, and sent out the next day. This mesh is ideal for a wide variety of screening and filtering applications. Custom cut pieces are available via email inquiry up to 36” widths and will be listed on etsy for your convenience. Feel free to reach us at gooddeal190 [!at] hotmail.com.