Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: TDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended C-CL010 Penclips, pk10 Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request TDL32_5L Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 5L Price on request