Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: HEDTDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended C-KITDD-2S Direct desorp (VDA 278) starter kit Price on request U-T17O3P-2S Ozone precursors cold trap, UNITY 2/xr and TD-100/ Price on request U-COV1516 Spare O-ring, black, for POD sampler (support body), pk 10 Price on request