Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: TDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended RMK-0026 Routine Maintenance Kit: Kori-xr Price on request M-TSTIN Inserts, PTFE,pk 6 Price on request U-T4WMT-2S Water Management, ethane - C20, cold trap Price on request