The Misty A368-16 Contact and Circuit Board Cleaner III is an 11-ounce aerosol cleaner formulated for electronics, contacts, and circuit boards. The fast-evaporating, residue-free formulation removes light dust, oils, and oxidation from connectors, switches, relays, and PCBs during electronics service, equipment maintenance, and electrical repair. Supplied as a single 11-oz aerosol can for industrial, contractor, and MRO maintenance inventories.