This EWC Controls 8-CLBD ULTRA-ZONE 8 Constant Load Bypass Damper is an essential part for your HVAC and refrigeration system. It is made of high-quality metal material and has a round shape with a diameter of 8 inches and a height of 8 inches. This zone control damper is designed to regulate the airflow in your system and ensure that it operates at the desired level. It is compatible with various models and brands, making it a versatile component for your HVAC needs.