RC boat enthusiasts, this metal water pump is exactly what you need to keep your models running cool and smooth! Measuring about 2.9 inches total with a 1.1 inch pump diameter, this sturdy metal pump operates at just 5V and can run continuously for 15 hours while pumping water non-stop. The completely waterproof design means you can literally submerge the whole pump in water without any issues. It comes with a JR plug that connects directly to your receiver - seriously, it's plug and play simple. The key thing to remember is you'll need a battery greater than 2S with voltage between 7-28V, and using a step-down module makes everything more stable. This pump is perfect for remote control boats that have water-cooled motors but don't have water-absorbing steering gear. At approximately 2.5 ounces, it's lightweight enough not to affect your boat's performance but built tough enough to handle regular use. Whether you're running warship models or speed boats, this pump provides reliable cooling that prevents overheating during those long running sessions. The low noise operation means you can focus on the fun rather than annoying motor sounds. It's one of those accessories that just makes your RC hobby so much more enjoyable and worry-free!