Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended M-TICAP Tube interface cap for removable lid,pk 6 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