Lukjan to5105 Metal Top Takeoff 5 Inches Rectangular Duct

Product Description

The LUKJAN to5105 is a non-adjustable metal top takeoff designed for use in rectangular sheet metal duct systems. It creates a fixed, secure branch connection point that channels supply air from the main duct trunk to a lateral branch or register boot. Fabricated from metal for durability, this takeoff provides a consistent, leak-resistant fit without requiring field adjustment. Licensed HVAC technicians and sheet metal installers typically specify this type of fitting when laying out forced-air supply systems in both residential and light commercial applications.

This top takeoff is suited for supply air distribution runs in forced-air HVAC systems where a 5-inch branch connection is required off the top of a rectangular main duct. Its non-adjustable design makes it straightforward to install and helps maintain airflow consistency across the duct layout. It is commonly used in new construction and retrofit projects where the branch size is predetermined by system design and Manual D calculations.

Key Features

• Non-adjustable design ensures a fixed, repeatable 5-inch branch connection with no field modification required
• Metal construction provides durability and long service life in duct systems
• Top-mount configuration connects directly to the top face of rectangular trunk duct
• Lightweight at 0.5 pounds, simplifying handling during installation
• Compact footprint fits within standard framing cavities typical of residential and light commercial builds

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 5-inch branch connections in rectangular sheet metal supply duct systems used in residential and light commercial forced-air HVAC installations.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal worker in accordance with applicable mechanical codes, including SMACNA duct construction standards. Shut down and de-energize the air handling system before cutting into or modifying existing ductwork. Secure the takeoff to the main duct using sheet metal screws and seal all joints with listed duct mastic or UL 181-rated tape to minimize air leakage. Do not force or modify the fitting to fit a duct size other than its rated 5-inch branch dimension.