Pride Plumbing came out and replaced a 40-gallon electric A.O. Smith water heater with a new 120-gallon electric Bradford White LE2120T3-1SEVV lite commercial model (this included removing and disposing of the old water heater after disconnecting its electrical connections and inlet and outlet water lines; installing the new water heater, new ball water shut-off valves, new PEX and stainless steel water supply lines to the water heater's water connections, new brass drain valves, connecting the unit's electrical connections, bleeding the air out of the water lines, ensuring that the unit's temperature and pressure (T&P) relief valve was properly vented, and setting the unit to its appropriate operating temperature).