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 M-MCAL50 Disposable dish, alum, 50mL,pk100 Price on request M-SPGSC-250 Adjustable sprung spacer, for M-CTE250I,pk 4 Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request