High Precision Water Filter Cartridge with Hydrophobic Hydrophillic Pleated PTFE Membrane for Fermentation Semiconductor Chemical Gas Filter 0.02/0.05 Micron - China Water Purifier, Oil Filter | Made-in-China.com
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Hydrophobic PTFE Membrane Filter 0.02 Micron 40 Inch Purifier Filter for Gas Sterile Filtration| Alibaba.com
High Precision Water Filter Cartridge with Hydrophobic Hydrophillic Pleated PTFE Membrane for Fermentation Semiconductor Chemical Gas Filter 0.02/0.05 Micron - China Water Purifier, Oil Filter | Made-in-China.com