Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: POL32_5L Availability: In the manufacturer's stock Price on request - + Recommended TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request T-11OP Ozone precursors trap, TT24-7 Price on request P-00010 VOC-Mole assembly, 230mm,pk10 Price on request