The ecosmart ECO MINI 4 4-Gallon 120V Electric Mini Tank Water Heater in White is a compact and efficient water heater perfect for small spaces. With its tankless design, this heater provides hot water on demand without the need for a large storage tank. The 120V voltage ensures easy installation and operation. The EcoSmart brand is known for its energy-saving technology, making this water heater a reliable and environmentally friendly option for your home heating needs.