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 TDL31_5L Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request M-MCTOPI Removable lids for M-CTE120I, inert,pk 6 Price on request