The M11 CUBE W/HEADER 16x20x12 by Koch Filter Corp is an advanced air filter designed for high-efficiency filtration in HVAC systems. This filter measures 16x20x12 inches and is sold in packs of 10. It features a sturdy construction that ensures long-lasting performance, effectively capturing airborne contaminants to improve indoor air quality. The M11 CUBE is engineered to meet industry standards, making it suitable for both commercial and residential applications. Its reliable filtration capabilities make it an essential component for maintaining a clean and healthy environment.