Devex Gas sampling bags 5L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: HEDDEV71_5L Availability: In the manufacturer's stock Price on request - + Recommended HEDTDL31_5L Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Price on request U-T14H2S-2S H2S cold trap, UNITY 2/xr Price on request C-KITDD-2S Direct desorp (VDA 278) starter kit Price on request