Quickly and efficiently service inboard/outboard marine engines. The Do-It-Yourself Winterizer allows flushing and preparation of boat engine for winter storage with just five gallons of antifreeze and your flusher. Save time and money season after season. Great for technicians too. For front mounted raw water pump systems use the Flush Adapter sold separately. Product : CAMCO D-I-Y BOAT WINTERIZER ENGINE FLUSHING SYSTEM Manufacturer : CAMCO Manufacturer Part No : 65501 UPC : 014717655019