strong straight flow VS gentle wide flow CONTROLLER OPTIONS CHARACTERISTICS1. There are 3 different sizes to suit different aquarium sizes. 2. A new single-unit dual-purpose design. Each set comes in one single power head with two interchangeable pump housings to make either strong straight flow or gentle wide flow. 3. Flow patters can be preprogramed to make changes every 6 hours to achieve the real eco environment. 4. Ceramic shaft and carbon bushing are employed to ensure pump’s longest lifespan. 5. The super strong magnetic holder applied is easy to install. The multiple vibration proof system helps to ensure a quiet working environment. 6. Small footprint but powerful. DC12V. Safe, reliable and high efficiency. 7. Universal voltage for use around the world. Voltage fluctuation will not exert influence on wave making. |