Seachoice 50-18311 Heavy Duty High Impact Plastic Motor Flusher Dual Water FeedSeachoice 50 18311 Heavy Duty High Impact Plastic Motor Flusher Dual Water Feed Flush away sand, silt and salt. Prevents clogging and corrosion. For use on most outboards and inboard outboards with side water inlets. Recommended for larger engines. Extend the life of your motor by flushing after every use. Sold Individually.