The Camco Do-It-Yourself Boat Winterizer Kit for Inboard/Outboard Engines makes preparing your engine for storage a quick, inexpensive process. With just 5 gallons of antifreeze (sold separately) and your earmuff motor flusher, the patented Camco Do-It-Yourself Winterizer uses a simple gravity feed to get the job done. Saves you plenty over the cost of having a technician power-flush your motor. Clean and efficient; the Camco Boat Winterizer includes reservoir, hoses, valves, and fittings.Made in USA. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.