Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: HEDTDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended M-DSK15-120 Spacer disc, alum, 1.5mm, for M-CTE120I,pk 24 Price on request C-POD-KIT01-TNXTA POD Starter kit: Tenax TA Price on request C-KIT325T-2S 325 Tube Kit Price on request