The FlowVis® Digital Flow Meter is designed with accuracy and reliability in mind, but its impressive >98% accuracy and unparalleled reliability are just a starting point. A wide array of advanced features and functionality, uncompromising build quality, and incredible value are what really set it apart from the competition. With unrivaled average accuracy, greater installation flexibility, and more NSF 50 certified models than any other brand, it's easy to see why FlowVis® is the pool and spa industry's flow meter of choice.