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 P-00040 VOC-Mole assembly, 830mm,pk10 Price on request DEV21_0.5L Devex bag with PC valve, 0,5L Price on request U-ULKIT TD automation/ULTRA-xr starter kit Price on request