Tedlar PVF Gas Sampling Bag with PP valve, 5L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_5L Availability: In the manufacturer's stock Price on request - + Recommended 1233 BALLOONS FOR GAS SAMPLING, 4Liters Price on request U-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request