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 OST-201-3421 Tube gas sampling 350, nozzle (GL14), septum Price on request C-POD-KIT01 POD Starter Kit: Carbopack X Price on request U-ULKIT TD automation/ULTRA-xr starter kit Price on request