Air Flow Products 84DB1815 Duct Board Tab Takeoff 18 in

Product Description

The AIR FLOW PRODUCTS 84DB1815 is an 18-inch duct board tab takeoff designed for use in low-pressure fibrous glass duct board HVAC distribution systems. Tab takeoffs provide a secure, snap-fit connection point where branch ducts split from a main duct board trunk, maintaining airflow integrity throughout the system. This fitting is part of the 84DB product line and is sized at 18 inches to match corresponding duct board openings. Licensed HVAC technicians and sheet metal installers typically specify this component during new construction or system retrofit projects where duct board is the primary distribution material.

This tab takeoff is suited for residential and light commercial forced-air HVAC installations using fibrous glass duct board construction. It is used at branch tapping points on the main trunk, allowing installers to route conditioned air to individual zones or rooms. The 84DB series is designed to work with standard duct board panel systems where a tabbed collar fitting is required for a clean, sealed branch connection. No specific compatible model numbers or system families were provided by the manufacturer for this SKU.

Key Features

• 18-inch size matches standard duct board trunk openings for direct fitment
• Tab design allows for a positive-locking connection to duct board panels
• Part of the 84DB series, engineered for fibrous glass duct board applications
• Supports branch duct connections in low-pressure forced-air distribution systems

Compatibility

Designed as an OEM-style fitting for use with fibrous glass duct board HVAC distribution systems requiring an 18-inch tab takeoff connection point.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal contractors familiar with duct board construction practices. The air handling system should be powered down and the supply fan disabled before cutting into any existing duct board trunk. Follow SMACNA duct board installation standards and local mechanical codes for sealing, support spacing, and pressure classification. Use approved duct board adhesive and foil tape rated for the system pressure class to ensure an airtight connection at the takeoff collar.

Technical Specifications

• Size: 18 inches
• Product Series: 84DB

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: 84DB1815