Nalgene 568-0010 过滤装置-250ml容量,MF75TM系列，聚苯乙烯外壳；Supor*machV PES膜，孔径0.1μm 250ml MF75 Filter Unit with 0.1um PES, 50mm, Sterile 50mm, 0.1um Labware and Bottles 12 12 1397