This Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is constructed from durable 30-gauge galvanized steel to ensure rust resistance and long-lasting performance. Designed for HVAC applications, it provides a secure transition from flat surfaces, such as duct board or lined plenums, to 3-1/4 in. x 10 in. stack ducts. The collar features extra-long tabs for easy installation and a tight seal, helping to optimize system efficiency and airflow. It can be easily installed using sheet-metal screws

Master Flow

Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar

SKU 897113
Regular price
$21.98

This Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is constructed from durable 30-gauge galvanized steel to ensure rust resistance and long-lasting performance. Designed for HVAC applications, it provides a secure transition from flat surfaces, such as duct board or lined plenums, to 3-1/4 in. x 10 in. stack ducts. The collar features extra-long tabs for easy installation and a tight seal, helping to optimize system efficiency and airflow. It can be easily installed using sheet-metal screws

Regular price
$21.98

This Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is constructed from durable 30-gauge galvanized steel to ensure rust resistance and long-lasting performance. Designed for HVAC applications, it provides a secure transition from flat surfaces, such as duct board or lined plenums, to 3-1/4 in. x 10 in. stack ducts. The collar features extra-long tabs for easy installation and a tight seal, helping to optimize system efficiency and airflow. It can be easily installed using sheet-metal screws

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