5GPM HIGH FLOW: The inner 16500rpm high-speed Motor works with the DeWalt 20V or Milwaukee 18V batteries, provide you a 5GPM/(18.9L/min) fast flow rate, high speed but works without noise, this battery operated portable pump is not only for your chainsaw, car, mower, motor,but also for big tractors, trucks, trailers, RVs, boats to transfer gasoline, diesel, oil, or water.