That’ll give you a clear idea of what it’s like to have a System 3 sand filter at work in your swimming pool. This filter is designed to remove more dirt and impurities, which will make your water feel fresher and look more inviting. We’ve made maintenance easier, too. Cleaning is as simple as applying a little wrist action to the control valve and walking away. And you won’t have to do it very often! Through innovative engineering, the filter’s dirt-handling capacity is maximized, which pays off in less maintenance. But best of all, the System 3 will make your pool water sparkle in the sun and shimmer in the moonlight.