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 U-T20PAM-2S Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for UNITY-xr, TD100-xr, Centri Price on request 1230 BALLOONS FOR GAS SAMPLING, 1Liter Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request