Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: HEDTDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended HEDFLD32_5L Fluode gas sampling bag with PTFE dual-valve, 5L Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request U-T4WMT-2S Water Management, ethane - C20, cold trap Price on request