The 14X20 4'' Filter Base Fan/Coil by Southwark Metal Mfg Co is designed for efficient air filtration and circulation in HVAC systems. This unit features a 4-inch depth, accommodating standard filters for optimal air quality. With dimensions of 14x20 inches, it fits seamlessly into various installations, ensuring compatibility with existing systems. Constructed from durable materials, this filter base is built to withstand the rigors of daily use while maintaining high performance. Ideal for both residential and commercial applications, it enhances airflow and filtration efficiency.