New Devex Sampling Bag with PTFE Valve & Septum Fitting, 50L Back Catalog number: NDV31_50L Availability: In the manufacturer's stock Price on request - + Recommended MBT71_1L Multi-layer gas sampling bags, PP valve (4.76mm), 1L Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request