FEP gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDFEP32_2L Availability: In the manufacturer's stock Price on request - + Recommended U-T6SUL-2S Sulphur/labile cold trap, Price on request C-EZVOCAK Easy-VOC accessory pack Price on request U-T12ME-2S Materials emissions, C4 - C32, cold trap Price on request