Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: HEDTDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended C-POD-KIT01 POD Starter Kit: Carbopack X Price on request HEDPOL32_2L Polyester gas sampling bag with PTFE dual-valve, 2L Price on request C-POD-KIT04 POD Starter kit: Carbograph 2TD Price on request