A crossover duct is a large-diameter flexible duct used in multi-section manufactured homes to connect the main air distribution systems of each section. Because Mobile Home ductwork is often split between two halves of the house, the crossover provides the bridge that allows air to flow from the furnace to the other side. This duct is usually located underneath the home and is highly susceptible to damage from animals, moisture, or ground contact. If the crossover duct is torn or crushed, one half of your home will be significantly warmer or cooler than the other. Protecting this duct with a durable Belly Board and proper insulation is vital for the efficiency of your Mobile Home Complete System. We provide high-quality flexible ducting specifically designed for the high-airflow needs of these applications. Regularly inspecting the crossover duct for leaks can save you hundreds of dollars in lost energy costs every year. It is the most critical airflow link in any double-wide or triple-wide home configuration.