DEVEX sampling bags with PTFE straight and septum valve with OD 6mm, 5L Back Catalog number: NDV31_5L Availability: In the manufacturer's stock Price on request - + Recommended NDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request U-T6SUL-2S Sulphur/labile cold trap, Price on request 1233 BALLOONS FOR GAS SAMPLING, 4Liters Price on request