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100PCS PTFE Membrane Disc Filter, Hydrophobic, 47mm, Micron Pore Size 0.45um, Excellent chemical compatibility Especially ideal for HPLC operation 47mm 0.45um Hydrophobic PTFE Filter Membrane sold2026 or 220 x 440 V100PCS PTFE Membrane Disc Filter, Hydrophobic, 47mm, Micron Pore Size 0. 45um, Excellent chemical compatibility Especially ideal for HPLC operation Product Features PTFE membranes are inherently hydrophobic; they are ideal for the filtration of nonpolar liquids and gases 0. 45um membrane filter: It can filter out most bacteria and microorganisms; conventional samples and mobile phase filtration can meet general chromatographic requirements. Can be