This Enerpac CD-411 dust cap prevents small particles from entering a quick coupler. It has 3/8" female National Pipe Taper Fuel (NPTF) threads and a ring for keeping the cap attached to the coupler. This dust cap is suitable for use with CR-400 and CH-604 high flow coupler halves.

Enerpac manufactures high-pressure tools and equipment for industrial applications. The company, founded in 1910, is headquartered in Menomonee Falls, WI.