This Builders In Scale O Scale Water Heater, also known as an Upright Boiler, is a must-have for any model railroad enthusiast. Whether you're building a new layout or adding to an existing one, this model part #7417 is perfect for creating a realistic scene. Crafted with attention to detail, this water heater would be a great addition to any toy or hobby collection. This model piece is cast in metal so can be painted and weathered to fit in.