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 C-EZVOCAK Easy-VOC accessory pack Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request RMK-0005 RoutMainten kit - TT24-7 Price on request