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 HEDTDL31_2L Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Price on request H1-AXAAC HiSorb probe, inert, standard, pk/6 Price on request U-HSAG-20 HiSorb Agitator, accommodates 16 vials (20mL) Price on request