High quality, compact DC pump suitable for salt and freshwater aquariums. Low voltage (24v). Incorporates the latest electronic pump technology for high power and flow rates combined with efficient energy consumption. Super quiet running. Variable speed control with up to 20 different speed settings, offering precise adjustment of water flow for optimum performance. Integrated feed timer shuts off the pump for 10 minutes to allow easy feeding. "Soft Start" feature to increase impeller life.