Electric water heater. 40 gal. Top cold water entry, glass-lined inner tank, insulated with 2-in. eco-friendly "Greenfoam", equipped with two elements 3,000 W/240 V bolt-on, automatic temperature control, a plasatic drain valve and 3/4-in. NPT di-electric plumbing connections. 6-year limited warranty against water leaks and 1-year on parts.