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 SERLFP-5002 Spare charger, ACTI-VOC Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request M-SPGSC-250 Adjustable sprung spacer, for M-CTE250I,pk 4 Price on request