Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: HEDTDLC31Z_1.6L 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 C-KIT325T-2S 325 Tube Kit Price on request HEDDEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request