Upgrade your HVAC installation with the Master Flow 9-inch Starting Collar featuring a built-in damper for optimal airflow control. Crafted from durable galvanized steel, this collar ensures long-lasting performance and reliability. It effectively transitions from flat surfaces, such as lined or duct board plenums, to round pipes or insulated flexible ducts, making it an essential tool for any HVAC project.

The collar's innovative design incorporates a 2-inch gap between the bead and flange, providing ample space to securely attach insulated flexible ducts. Its universal compatibility ensures it meets various HVAC needs, whether for residential or commercial applications.

Lightweight yet robust at only 0.8 pounds, this product measures 9 inches in diameter and 6 inches in height, making it easy to handle and install. With a 90-day manufacturer warranty guarding against defects, you can trust in its quality and durability.

Enhance your HVAC efficiency today with the Master Flow 9-inch Starting Collar. Enjoy fast and free shipping, coupled with a hassle-free return policy that guarantees your satisfaction. Shop confidently and transform your ducting system into one that operates at its best!