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-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request U-COV108-H O-ring, Injector Liner, Black, High Temp, pk/1 Price on request