Efficient engine flushing The outboard motor water flusher is designed to flush outboards and stern drives. It effectively removes salt, sand, silt, and dirt, reducing the risk of damage and helping ensure optimal engine performance. Secure and reliable connection Black coated spring steel frame provides a secure, leak-free connection during flushing. It ensures a tight fit and minimizes leaks for peace of mind. Easy installation User friendly design. Slide the cup over the top of the sink and attach the garden hose to the connecting fitting. Setup takes just a few minutes to start flushing your engine. Durable construction Made of rubber and plastic materials, this outboard water washer is built to last. It withstands regular flushing and resists wear and tear for long term use. Use scenarios - After saltwater boating to rinse the cooling system and remove salt, sand, and debris. - During routine maintenance at home or at the marina to keep passages clear and prevent buildup. - Before or after storage to protect components and support long term reliability for stern drives and outboards.