The Rheem 21146 is a 450mm flat fan designed for efficient airflow in various applications. This fan features a robust design without a guard, allowing for optimal air circulation in tight spaces. Constructed from high-quality materials, it ensures durability and reliable performance. Ideal for use in HVAC systems, this flat fan is compatible with a range of Rheem models, making it a versatile choice for both residential and commercial settings. Its efficient design meets industry standards, providing effective cooling and ventilation.