The NRO Commercial Series  of reverse osmosis systems are custom built by Nelsen Corp. to customers’ specifications. NSF-grade high quality parts are used to build these systems. All Nelsen NRO Commercial Systems are wet tested to optimum pressure and production prior to shipment, and they are delivered with individual quality assurance reports to show actual performance data on outputs and rejections. The NRO 440 Series is designed for commercial or light industrial applications requiring flow rates of 0.17 to 6.9 gallons per minute. These systems also feature a powder-coated steel frame, a complete performance monitoring package and simple system integration.