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 TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request C-POD-1XX POD Cartridge, Carbopack X, pk 10 Price on request C-POD-SP10 POD Support Plate, with clip, pk 10 Price on request