Devex Gas sampling bags 5L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: DEV71_5L Availability: In the manufacturer's stock Price on request - + Recommended U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request U-ULKIT TD automation/ULTRA-xr starter kit Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request