The STRATA FILTER 11-1/4x17-1/4x1 is a premium air filter by AAF International, designed to provide high-efficiency filtration for HVAC systems. This filter measures 11-1/4x17-1/4x1 inches and is engineered to capture a wide range of airborne particles, including dust, pollen, and allergens. Its robust construction ensures durability and long-lasting performance, making it suitable for both commercial and residential applications. The STRATA FILTER meets industry standards for air quality and efficiency, ensuring compliance with ISO and ANSI regulations. Easy to install and maintain, this filter is an excellent choice for enhancing indoor air quality.