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 M-DSK15-250 Spacer disc, alum, 1.5mm, for M-CTE250I,pk 24 Price on request P-CP001 VOC-Mole cap assembly,pk 1 Price on request M-MCAL20 Disposable dish, alum, 20mL,pk100 Price on request