The Polyklean White filter from AAF International, measuring 30"+135'+1/2", is designed for high-capacity air filtration in large HVAC systems. This filter features a unique construction that enhances its ability to capture dust, allergens, and other airborne contaminants, ensuring cleaner air in your environment. Its extended dimensions make it suitable for extensive air handling units, providing a perfect fit and easy installation. The white color signifies its high-efficiency design, making it an excellent choice for environments requiring superior air quality. This filter complies with industry standards, ensuring reliable performance and longevity in demanding applications.