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 POL32_5L Polyester gas sampling bag with PTFE dual-valve, 5L Price on request C-POD-KIT04 POD Starter kit: Carbograph 2TD Price on request U-COV100 O-Ring, low-emission, size 010, pk/100 Price on request