This is a brand-new, boxed Rheem ECO200ELN-3 Smart Outdoor Natural Gas Tankless Water Heater. Its maximum flow is 9.5 gallons per minute. It's a smart heater, providing energy efficiency and easy controls. Notably, the box has some paint overspray on it, but the product within remains in perfect condition.  You'll have nearly endless hot water supply with this reliable and technologically advanced appliance. Power your whole home while saving space and energy with this Rheem tankless heater.