The SA47-101-102 McDonnell Miller Valve and Strainer Assembly is a crucial component for central furnace systems. This assembly includes a valve and strainer designed by McDonnell Miller, known for their quality and durability in the heating and cooling industry. The valve and strainer work together to regulate the flow of air or fluid, ensuring optimal performance and efficiency of the central furnace system. This product is essential for maintaining and improving the functionality of your heating and cooling system.