Tedlar PVF Gas Sampling Bag with PP valve, 5L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_5L Availability: In the manufacturer's stock Price on request - + Recommended HEDTDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request SERZ-1097 Spare tube assembly, ACTI-VOC Price on request SERZ-1076 Spare filter assembly, ACTI-VOC Price on request