The Lau 60558501 18" Fan Blade is a high-quality, durable HVAC accessory designed for use in commercial and industrial applications. With a blade diameter of 18 inches and a 33-degree pitch, this fan blade is specifically designed for optimal performance. Manufactured by Lau in Mexico, this fan blade is compatible with other Lau products and is known by the model number 60-5585-01. Whether used in heating, cooling, or ventilation systems, this fan blade is a reliable and efficient component for maintaining optimal airflow in a variety of settings.