Flushes contaminates for your lower unit cooling systems. Quickly removes salt and mineral build-up with a simple flush that slips over side water inlets on most inboard and outboard lower units. Install in seconds using just a garden hose. For rectangular water inlets. A customer-favorite for all engines over 50 horsepower. Improved water flow with rectangular cups will virtually eliminate water leakage for higher-pressure flushing. For use on all lower units with side water inlets; includes Volvos.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov