FEP gas sampling bag with PTFE dual-valve, 2L Back Catalog number: FEP32_2L Availability: In the manufacturer's stock Price on request - + Recommended NDV31_50L New Devex Sampling Bag with PTFE Valve & Septum Fitting, 50L Price on request U-T13DHS-2S DHS application cold trap, UNITY 2/xr andTD-100/xr Price on request TDL32_2L Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Price on request