Use with Ultrafilm or Salt-X additives. A unique, cost effective, preventative maintenance system that inhibits corrosion and prolongs the life of your marine engine. For inboards, outboards, stern drives and jet skis. To prevent salt and mineral damage inside your marine motor. Clear cooling channels. Removes sediments. Protects from salt corrosion. Lubricates water pumps. Connect to earmuff style flusher.