The Heavy Duty Filter 21x33x1 from AAF International is designed for high-efficiency air filtration in commercial and industrial applications. This filter features a robust construction that ensures durability and longevity, making it ideal for environments with high dust and particulate levels. With a MERV rating that guarantees superior filtration performance, it effectively captures airborne contaminants, improving indoor air quality. The dimensions of 21x33x1 inches make it compatible with standard HVAC systems, ensuring easy installation and replacement. This filter is engineered to meet industry standards, providing reliable performance in demanding conditions.
