... 10, 15, 20, 30, 50, 70, 100 Specifications:1) Filter precision (µm): 1, 3, 5, 10, 15, 20, ... 60 - 250mm.Features:1) High filter precision and high efficiency, the cartridge hole diameter is compact and well-distributed ... , filter efficiency is higher than 99 ... electroplating, printing, beer, and drinking. PP Cartridge filter