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 C-HSINS10-6 Agitator spacer for vials, 20mL to 10mL, pk/6 Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request M-MCHSI Sample pans for M-CTE120I, inert,pk 6 Price on request