Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: TDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended C-HSINS10-4 Vial block insert, 20mL to 10mL, pk 4 Price on request 202814 Gilian 800i/5000/10i/12LCD DISPLAY WINDOW Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request