HAWG S-PAK MEMBRANE 600/PKHAW.MilliporeSigma Microbiological Analysis Membrane Filters, Gridded, White, Diameter Outside: 4.7cm, 1.85 in., Pore Size: 0.45um, For Use With: MF method microbiological analysis of water or other liquids, S-Pak Membrane F
GSWG S-PAK MEMBRANE 600/PK.MilliporeSigma Microbiological Analysis Membrane Filters, Gridded, White, Diameter Outside: 4.7cm, 1.85 in., Pore Size: 0.22um, For Use With: MF method microbiological analysis of water or other liquids, S Pak Membrane Filt