Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Back Catalog number: TDL32_2L Availability: In the manufacturer's stock Price on request - + Recommended T-7CUS cust packed cold trap, TT24-7 Price on request M-CHCT-250 Calibration tool for M-CTE250I, pk 4 Price on request C-TDKIT-01 Essential TD Starter Kit Price on request