Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended H3-AXABC HiSorb probe, PDMS/DVB, inert, short version, pk 6 Price on request M-TCN04 O-Ring, size 007, and spacer,pk 6 Price on request C-POD-B010 Spare Diffusive Body, for POD sampler, pk 10 Price on request