ECHO TEC WATER MAKERS. BELT DRIVEN SYSTEM POWERED BY MAIN ENGINE. MODEL 400-BMS-2. 16 Gal per hour. two 21 inch membrane vessel. All EchoTec. Watermakers use the highest quality components that have proven to withstand continuous duty in a harsh marine environment. For ultimate corrosion resistance, all wetted components, including the high pressure pump head, the true regulating pressure valve and the high pressure fittings are made from 316 Ti stainless steel. Two year limited warranty - Five years on the 316 Ti high pressure pump. No proprietary equipment - components may be obtained anywhere. Modular concept for space saving installation. Separate control panel for ease of operation. No energy recovery pumps - No expensive electronic circuits to fail. Spring loaded automatic pressure regulator for constant working pressure and smooth flow.