New DEVEX gas sampling bags with PTFE dual-valve, 2L Back Catalog number: NDV32_2L Availability: In the manufacturer's stock Price on request - + Recommended TDL71_0.3L Tedlar PVF Gas Sampling Bag with PP valve, 0,3L Price on request SERLFP-5003 Spare back pressure adapter, ACTI-VOC Price on request T-9GPC General purpose carbon cold trap, TT24-7 Price on request