25pcs 100pcs Lab Diameter 13/25mm Membrane Pore size 0.22/0.45/2.0um Disposable Hydrophobic PTFE Membrane Syringe Filter

25pcs 100pcs Lab Diameter 13/25mm Membrane Pore size 0.22/0.45/2.0um Disposable Hydrophobic PTFE Membrane Syringe Filter

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