Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T5O3F-2S Ozone precursors/Freon cold trap Price on request OST-201-3424 Tube gas sampling 150ml nozzle (GL14), septum Price on request HEDPOL32_2L Polyester gas sampling bag with PTFE dual-valve, 2L Price on request