• Flusher feeds water intakes from both sides for efficient water flow. • Installs in seconds using standard garden hose connection. • Suitable for most outboards and stern-drives with side water intakes. • Large rectangle cups offer good intake coverage and reduced leakage. • Suitable for larger horsepower engines. • Great way to check your engine prior to boat trips. • Regular flushing reduces metal corrosion and improves impeller life.