Air Flow Products 84DB1505 Duct Board Tab Takeoff

Product Description

The AIR FLOW PRODUCTS 84DB1505 is a duct board tab takeoff designed for connecting branch ducts to main duct board trunk lines in forced-air HVAC systems. This fitting features a 5-inch round opening with a 1.5-inch tab depth, allowing it to seat securely into duct board without the need for additional collars or adapters. It is installed by HVAC technicians during new construction ductwork fabrication or duct system retrofits where fiberglass duct board is the primary trunk material.

The 84DB1505 is used in residential and light commercial forced-air applications where fiberglass duct board trunk systems are specified. The tab design allows the takeoff to be inserted directly into a cut opening in the duct board panel, creating a secure mechanical connection for branch duct runs. This fitting is a standard component in supply-side duct layouts where 5-inch round branches are required off a duct board main.

Key Features

• 5-inch round opening for direct connection to 5-inch round branch ductwork
• 1.5-inch tab depth for positive engagement with duct board panels
• Tab-style mounting eliminates need for separate duct board collars
• Designed for fiberglass duct board trunk line installation

Compatibility

Designed as an OEM-style replacement and new-construction fitting for fiberglass duct board trunk systems requiring 5-inch round branch takeoffs.

Installation Notes

Installation is performed by licensed HVAC technicians working with fiberglass duct board systems. Power down the air handling unit before cutting into an existing duct board trunk. Use a sharp utility knife or duct board knife to cut the takeoff opening to the correct size before inserting the tab fitting. Seal all joints with UL 181B-rated mastic or approved tape per local mechanical code requirements.

Technical Specifications

• Round Opening Diameter: 5 inches
• Tab Depth: 1.5 inches

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: 84DB1505