Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended P-CP001 VOC-Mole cap assembly,pk 1 Price on request HEDTDL31_2L Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Price on request M-MCTOP250I Removable lids for M-CTE250I, inert,pk 4 Price on request