Water-Tec of Tucson announces WXL and compact commercial RO units in 450- or 800-gpd (1703.4 or 3028.3 L/d) models. Both feature stainless steel housings, flow meters for permeate and concentrate, fluid-filled gauges for system pressure, five-micron prefilters and indicator lamps for power and low incoming pressure. WXL models include valves for recycle and concentrate and are set up for use with atmospheric tanks, but can be used in pressure systems with available options. Compact models include carbon filters and are set up for use with atmospheric tanks. Optional one- or two-probe digital TDS meters are also available.www.water-tec.com(800) 343-1512