Maine Membrane Filtration Pack 10497511 by Maine Manufacturing GROUP: Lab Equipment & Accessories:Microbiology Products:Membrane Filtration Item Description: Microbiological Monitor, 47mm, 0.2�m Pore Size, White/ Black Grid, 100mL, 50/pk Packaging Desc: Monitor Microbio Wht/Blk Grid47Mm 100Ml 0.2Um 50/Pack Country of Origin: US Harmonized Tariff Code: 8421.29.00 Product Description: