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The AIR FLOW PRODUCTS 84RATD16 is an airtight stick-on takeoff fitting designed for round duct pipe with an integrated damper. This fitting connects branch runs to a main duct trunk, allowing airflow to be directed and controlled at the point of takeoff. The built-in damper provides on-site balancing capability, letting installers fine-tune airflow to individual zones or rooms. At 16 inches, it fits larger-diameter round duct systems found in residential and light commercial forced-air HVAC installations. HVAC technicians and sheet metal contractors use this fitting during new construction and retrofit ductwork projects.
This takeoff is suited for forced-air supply or return duct systems where a secure, airtight connection is required at the branch tap point. The stick-on design simplifies installation by eliminating the need to cut and collar the main trunk line in the traditional manner, reducing labor time on the job site. It is appropriate for residential new construction, renovation projects, and light commercial applications where round duct branch connections are specified.
Designed as an OEM-style replacement and new-installation fitting for 16-inch round duct systems in residential and light commercial forced-air HVAC applications.
Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor in accordance with local mechanical codes and SMACNA duct construction standards. Shut down the air handling system and verify the system is de-energized before beginning ductwork modifications. Ensure the main trunk surface is clean and free of debris before applying the stick-on fitting to achieve a proper airtight seal. Secure the connection with appropriate duct tape or mastic sealant as required by local code.
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