Devex Gas sampling bags 10L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: HEDDEV71_10L Availability: In the manufacturer's stock Price on request - + Recommended HEDDEV21_0.5L Devex bag with PC valve, 0,5L Price on request U-T5O3F-2S Ozone precursors/Freon cold trap Price on request P-CPS20 Dowty seals, for VOC-Mole cap assembly,pk 20 Price on request