ECHO TEC WATER MAKERS. AC POWERED SYSTEM. MODEL 780-AML-2. 32 Gal per hour. two 40 inch membrane vessels. 115/230V 60hz. The newly engineered, highly power efficient 115/230V AC Series meets the increasing demand on a low power consumption / high output desalinator of outstanding reliability. These extremely quiet operating systems can be started by small to medium sized generators or inverters and leave ample power for other equipment when running. Only highest quality components that have proven to withstand continuous duty in a harsh marine environment are selected for ultimate performance and lifetime. All wetted components including the patented true regulating pressure valve and all O-ring sealed high-pressure fittings are made of Duplex stainless steel.Three year limited warranty - Duplex stainless steel high pressure pump head and RO pressure vessel guaranteed for life. Post treatment pH buffer / hardener element saves up to 50% product water. No proprietary equipment - components may be obtained anywhere (except pH buffer element). Modular concept for space saving installation. Separate control panel for ease of operation. No energy recovery pumps - No electronic circuits. Spring loaded automatic pressure regulator for constant working pressure and smooth flow.