Devex Gas sampling bags 10L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: HEDDEV71_10L Availability: In the manufacturer's stock Price on request - + Recommended C-CL010 Penclips, pk10 Price on request HEDDEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request C-HSINS10-6 Agitator spacer for vials, 20mL to 10mL, pk/6 Price on request