Syringe Filter PTFE Filtration, 25mm Diameter 0.22um Pore Size Non-sterile Pack of 20 (Pack of 20, 0.22μm, PTFE)
SAR 53
LINKTOR Chemistry Molecular Model Kit, Student or Teacher Set for Organic and Inorganic Chemistry Learning, Motivate Enthusiasm for Learning and Raising Space Imagination (190 PACK)
SAR 100
LINKTOR Lab Linear Pipettor Stand Rack, Hold Up 6 Micropipettes, Premium Engineering Plastic Polymer, Excellent Chemical Reagent Corrosion Resistance
SAR 79