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 T-7CUS cust packed cold trap, TT24-7 Price on request U-T5O3F-2S Ozone precursors/Freon cold trap Price on request 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request