The Rheem Vent Hood Damper Assembly AP13152-1 measures 9 inches by 7 inches and is designed to regulate airflow in your heating system. This essential component ensures efficient ventilation, preventing backdrafts and maintaining optimal performance. Made from high-quality materials, it meets industry standards for safety and reliability. Its compact design allows for easy installation in various Rheem models, making it a crucial part of your heating system. Improve your system's efficiency with this reliable vent hood damper assembly.