6879-2504 Whatman Syringe Filter, 0.45 µm, Polypropylene Membrane, Non-Sterile with FNPT Inlet/MNPT Outlet (Pack of 1500) New Laboratory Setup Savings - up to 40%, Magnetic Stirrer, Vortex Mixer, Sample Prep, Centrifuge
Whatman PTFE membrane filters TE 36 (circles), 0.45 um, 50 mm, 50/pk Whatman filter
Whatman 7404-001 , Nylon Membrane Circle, 0.45 um pore size, 13 mm
Whatman 10406870 Cellulose ME25/21 ST Mixed Ester Filter Membrane, 47mm White Circle with 3.1mm Black Grid Sterile, 0.45 Micron (Pack of 100): Science Lab Filter Membranes: Amazon.com: Industrial & Scientific
Whatman GD/X syringe filters polyethersulfone membrane, pore size 0.45 um, diam. 25 mm, sterile, pk of 50 ea Whatman filter