DEVEX gas sampling bag, stopcock straight valve, 5L Back Catalog number: DEV31_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T17O3P-2S Ozone precursors cold trap, UNITY 2/xr and TD-100/ Price on request POL32_5L Polyester gas sampling bag with PTFE dual-valve, 5L Price on request DEV41_5L DEVEX sampling bags 5L, stopcock & septum Price on request