Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended U-COV201 O-ring, Injector HiSorb & HiSorb Storage, pk 10 Price on request 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request U-T10CW-2S Chemical Warfare agents cold trap Price on request