Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: TDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended M-MCTOP250I Removable lids for M-CTE250I, inert,pk 4 Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request U-COV03 O-Ring, Size 003, pk 10 Price on request