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 DEV21_0.5L Devex bag with PC valve, 0,5L Price on request NDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request