Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDPOL32_2L Availability: In the manufacturer's stock Price on request - + Recommended P-CPP10 Blanking plugs, for VOC-Mole cap assembly,pk10 Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request 1230 BALLOONS FOR GAS SAMPLING, 1Liter Price on request