Tab Collar/Starting Collar Assembled with damper, Crimped one end. Flanges positioned to support R4 (1"), R6 (1.5") & R8 (2") Ductboard.
A specialized HVAC fitting that combines a tab collar and damper to regulate airflow within ducts.
Ensures a secure connection while offering adjustable control over the air movement.
Useful for maintaining optimal airflow and system efficiency.
