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 DEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request C-CL100 Penclips, pk100 Price on request TDL71_0.5L Tedlar PVF Gas Sampling Bag with PP valve, 0,5L Price on request