Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended 1231 BALLOONS FOR GAS SAMPLING, 1,5Liters Price on request U-COV201 O-ring, Injector HiSorb & HiSorb Storage, pk 10 Price on request P-CPU10 Unions, for VOC-Mole cap assembly,pk10 Price on request