Saint Gobain D1069175 Zitex Filter Membrane 3 to 5 µm, 47 mm Diameter (Pack of 10): Amazon.com: Industrial & Scientific
AmScope MR095 Microscope Stage Calibration Slide for USB Camera 0.01mm Stage Micrometer: Camera And Photography Products: Amazon.com: Industrial & Scientific
Hach 253000 TSS Glass Fiber Filter, Pore Size 1.5 µm, Diameter 47 mm (Pack of 100): Amazon.com: Industrial & Scientific
Daigger R2PJ047 PTFE Membrane Disc Filter, 47 mm Diameter, 139 µm Thickness (Pack of 50): Amazon.com: Industrial & Scientific
Mitutoyo 156-106 Μm Stand, 0-2 In/0-50 mm, Fixed Angle with Platform: Amazon.com: Industrial & Scientific
Omicron SFNY25RB Nylon Syringe Filter, Non-Sterile, 25 mm, 0.22 μm (Pack of 100): Amazon.com: Industrial & Scientific
Mercury_Group 935 Mikrometer für Mikroskop, 0,1 mm Diameter 19mm : Amazon.de: Gewerbe, Industrie & Wissenschaft