Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDPOL32_2L Availability: In the manufacturer's stock Price on request - + Recommended U-TO15-KXR Focusing trap, Trace TO-15, for UNITY-xr with Kori-xr Price on request P-CPP10 Blanking plugs, for VOC-Mole cap assembly,pk10 Price on request U-T6SUL-2S Sulphur/labile cold trap, Price on request