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 U-T15ATA-2S UNITY 2 Cold trap, TO-15/TO-17 Air Toxics C2/3 Price on request U-T1HBL-2S High boilers, C6 - C40, cold trap Price on request U-T8CUS-2S cust packed cold trap, UNITY 2/xr and TD-100/xr Price on request