The 1" Alum Filter 20x25x1 from AAF International is designed for efficient air filtration in HVAC systems. This aluminum filter features a robust construction that enhances durability while providing effective capture of dust and allergens. Measuring 20 inches by 25 inches with a 1-inch depth, it fits standard filter frames perfectly. The filter is designed for easy installation and maintenance, making it suitable for both residential and commercial applications. Its lightweight design ensures optimal airflow while maintaining high filtration efficiency, contributing to improved indoor air quality.