Air Flow Products 84DB16 Duct Board Tab Takeoff 16 in

Product Description

The AIR FLOW PRODUCTS 84DB16 is a 16-inch duct board tab takeoff designed for use in low-pressure air distribution systems built with fibrous glass duct board. Tab takeoffs provide a secure, leak-resistant connection point where branch ducts split from a main trunk. This fitting is part of the 84DB series and is sized at 16 inches to match standard duct board trunk dimensions. HVAC sheet metal workers and duct fabricators install this fitting during new construction or retrofit duct system builds. It is a critical component for maintaining proper airflow routing and system efficiency in residential and light commercial applications.

The 84DB16 is used in fibrous glass duct board systems where branch takeoffs are required along the main supply trunk. It is suited for residential forced-air heating and cooling systems as well as light commercial air distribution layouts. The tab design allows the fitting to lock securely into the duct board surface without additional fasteners, streamlining installation in tight mechanical spaces or attic runs.

Key Features

• 16-inch sizing for compatibility with standard duct board trunk applications
• Tab design locks into duct board without additional fasteners
• Part of the 84DB series for consistent fitment across branch takeoff configurations
• Supports low-pressure air distribution system layouts
• Suitable for residential and light commercial HVAC ductwork

Compatibility

Designed as an OEM-style fitting for fibrous glass duct board systems requiring a 16-inch branch takeoff connection point.

Installation Notes

Installation is typically performed by licensed HVAC technicians or qualified duct fabricators. Shut down the air handling unit and confirm the system is de-energized before working on any duct section. Tabs should be fully seated and sealed at the duct board surface using approved duct sealant or foil tape per SMACNA guidelines to maintain system integrity. Do not over-compress the duct board when inserting the fitting, as this can distort the connection and reduce airflow performance.

Technical Specifications

• Size: 16 inches
• Series: 84DB
• Application: Duct Board Tab Takeoff

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: 84DB16