Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended M-SPGSC-120 Adjustable sprung spacer, for M-CTE120I,pk 6 Price on request P-CP020 O-Rings, 23mm × 3mm i.d.,pk 20 Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request