Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: MBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended NDV31_5L DEVEX sampling bags with PTFE straight and septum valve with OD 6mm, 5L Price on request M-TICAP Tube interface cap for removable lid,pk 6 Price on request U-T10CW-2S Chemical Warfare agents cold trap Price on request