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-TSTIN Inserts, PTFE,pk 6 Price on request C-KIT325T-2S 325 Tube Kit Price on request C-POD-B010 Spare Diffusive Body, for POD sampler, pk 10 Price on request