To expand upon their SWI series of industrial-sized sea water reverse osmosis systems by offering additional sizes, Pure Aqua, Inc., of Irvine, Calif. , is announcing the SWC series. Ideal for smaller boating and off-shore applications the SWC series includes systems capable of 380 to 7,600 gallons per day. The units feature corrosion resistant pumps, glycerin-filled SS gauges, high quality membranes, FRP housings and control panels, all mounted to an epoxy coated steel frame.