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 U-T9TNX-2S Unity 2/TD-100 Cold trap, Tenax TA Price on request RMK-0020 Routine Maintenance Kit: Tube conditioner (TC-20) Price on request 1232 BALLOONS FOR GAS SAMPLING, 2Liters Price on request