The Purolator TL25274 Heavy Duty Air Filter is a 25" x 25" x 2" industrial-strength panel filter designed to protect engines from harmful contaminants. This filter features a superior-grade skin-backed fiberglass media that enhances performance by improving aerodynamics and reducing airflow resistance. Its one-piece, heavy-duty Kraft board frame with monobond pinch ensures structural integrity and easy installation. The filter's high arrestance rate of 75% effectively captures dust and debris, while its temperature rating of 150°F allows it to withstand various operating conditions. Compliant with UL 900 and ASHRAE 52.1 standards, this filter is suitable for industrial and commercial applications, offering a larger effective filtering surface area for optimal engine protection.