Autofil PP - Disposable Vacuum Bottle Top Filters for Solvent Filtration, with 0.2um Sterilizing PES Membrane, 1L (1000mL), GL45 Thread, Polypropylene Housing, Non-Sterile, (Pack of 12) #38 Autofil Sterile Disposable Vacuum Filter Units with 0.45um PES Membrane for Prefiltration or Clarification, 1000mL, 12/CS