The Lennox 71W27 Air Inlet Collar is a durable component designed for use in Lennox HVAC systems to provide a secure connection between ductwork and the unit. It allows proper airflow intake, ensuring the system operates efficiently and maintains balanced air distribution. By supporting a tight and stable fit, this inlet collar reduces air leaks, enhances system performance, and contr... https://www.partshnc.com/71w27-lennox-air-inlet-collar