Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDPOL32_2L Availability: In the manufacturer's stock Price on request - + Recommended M-MCTL250 Sample Pan Removal Tool, for high temp Micro-chamber Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request TDL71_0.3L Tedlar PVF Gas Sampling Bag with PP valve, 0,3L Price on request