Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T4WMT-2S Water Management, ethane - C20, cold trap Price on request P-CP001 VOC-Mole cap assembly,pk 1 Price on request M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request