Upgrade your Norcold refrigerator with the reliable Norcold AC Heater. Designed for 120V AC systems, this 300W heater ensures optimal performance, keeping your food and beverages perfectly chilled. Its robust construction guarantees durability, making it an essential replacement part for your RV or camper. Easy to install, the 630811 model fits seamlessly into your existing setup, providing efficient heating to maintain the ideal temperature. Say goodbye to worries about spoilage and hello to convenience with this dependable heater that enhances your travel experience!