The 20X25 6'' FILTER BASE FAN/COIL by Southwark Metal MFG Co is engineered for optimal air filtration and circulation in HVAC systems. This filter base measures 20" x 25" and accommodates a 6-inch filter, ensuring efficient air quality management. Made from robust materials, it is designed to withstand the rigors of daily use while maintaining high performance. The unit is compatible with various fan and coil setups, making it a versatile choice for both residential and commercial applications. Its design adheres to industry standards, ensuring reliable operation and easy installation.