A start collar is a crucial component in heating, ventilation, and air conditioning (HVAC) systems. It serves as the initial connection point between a duct and an air distribution device, such as a register or diffuser. This collar is typically made from durable materials like galvanized steel or aluminum to ensure longevity and structural integrity.

The start collar features a flanged opening that securely attaches to the duct, providing a stable and airtight seal. Its design allows for easy and secure installation, making it a practical choice for HVAC professionals.

This component plays a vital role in efficiently directing conditioned air from the main duct to various spaces within a building. It helps regulate airflow and contributes to overall comfort and climate control.

Due to its robust construction, a start collar is resistant to wear and corrosion, ensuring long-term durability and reliability. It is available in various sizes and configurations to accommodate different ductwork layouts and system requirements.