Introducing the FB384-UW, a high-quality replacement fan blade designed specifically for the F684L model. Crafted from durable ABS material, this accessory ensures longevity and reliable performance. With a length of 2.76 inches, it seamlessly fits your fan, enhancing airflow efficiency. The FB384-UW is an essential component for maintaining optimal function, making it a practical choice for anyone looking to keep their fan in peak condition.