fæddur Meander rökfræði amazon corning bottle top filter Auðvelt að gerast Ákvörðun hugmynd
Corning® 500 mL Bottle Top Vacuum Filter, 0.22 µm Pore 33.2cm² CA Membrane, Fits 45 mm Diameter Necks, Sterile, 12/Case from Corning Life Sciences | SelectScience