Designed for single point-of-use applications such as hand sinks in RVs, boats, restaurants, hotels, and medical offices requiring low flow rates not exceeding 1 GPM. Easy-to-install. Fits under a sink or sink cabinet. Heat exchanger made of stainless steel. Copper and brass heating element. 30A breaker required. Pipe fitting: 1/2" NPT. Activation flow: .25 gallon. Energy factor: 0.98. UL and CSA certified. Dimensions: 11" x 6.5" x 3.5". Weight: 3 lb. 1 year warranty.