syringe filter with pre-filter Available in 13mm, 25mm 0.2µm SYGP Hydrophilic Polypropylene membrane syringe filter with pre-filter Available in 13mm, 25mm 0.45µm SYVF PVDF membrane syringe filter Available in 4mm,13mm, 25mm 0.2µm SYVF PVDF membrane syringe filter Available in 4mm, 13mm, 25mm 0.45µm SYVG PVDF membrane syringe filter with