Tube gas sampling 350, nozzle (GL14), septum Back Catalog number: OST-201-3421 Availability: In the manufacturer's stock Price on request - + Recommended 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request OST-LENZ01341214 Silicone rubber sealings, Septa for GL 14, pk/100 Price on request U-T20PAM-2S Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for UNITY-xr, TD100-xr, Centri Price on request