Devex Gas sampling bags 5L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: HEDDEV71_5L Availability: In the manufacturer's stock Price on request - + Recommended HEDFEP32_2L FEP gas sampling bag with PTFE dual-valve, 2L Price on request TDL71_10L Tedlar PVF Gas Sampling Bag with PP valve, 10L, 3/16'' OD (4.76mm) Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request