Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: MBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request M-MCTOP250I Removable lids for M-CTE250I, inert,pk 4 Price on request M-SPGSC-250 Adjustable sprung spacer, for M-CTE250I,pk 4 Price on request