Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: HEDTDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended SERLFP-5003 Spare back pressure adapter, ACTI-VOC Price on request M-SPGSC-250 Adjustable sprung spacer, for M-CTE250I,pk 4 Price on request HEDNDV31_5L DEVEX sampling bags with PTFE straight and septum valve with OD 6mm, 5L Price on request