FLEXEON BT – Series Commercial Reverse Osmosis Systems further expand the FLEXEON commercial reverse osmosis lineup with three models designed for 1,500, 1,800 and 2,000 gallons per day.Featuring 4.0” diameter sediment and carbon block pre–filters, low energy membranes and a high pressure pump, the BT – Series sets the industry standard for high–performance reverse osmosis systems. These models can also be upgraded with options for higher recovery rates by adding the concentrate recycle option.