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 C-TAGKT TubeTAG starter kit (for SS tubes) Price on request C-TDKIT-02 Essential Automated TD Starter Kit Price on request SERLFP-5003 Spare back pressure adapter, ACTI-VOC Price on request