Lukjan to5405 Ductboard Top Takeoff Fiberglass 5 in

Product Description

The LUKJAN to5405 is a 5-inch fiberglass ductboard top takeoff designed for use in forced-air HVAC distribution systems. This fitting connects branch ducts to a main ductboard trunk, directing conditioned air from the top of the trunk line into branch runs. Manufactured by Lukjan Metal Products, it is built to work with standard ductboard construction methods used in residential and light commercial HVAC installations. At 0.5 pounds, the unit is lightweight and straightforward to handle during installation. Its fiberglass construction provides inherent insulating properties suited to ductboard system requirements.

This top takeoff is intended for use in ductboard HVAC systems where branch lines must be tapped off the top surface of a trunk duct. It is commonly installed during new construction or system retrofit work in residential and light commercial buildings. HVAC technicians and sheet metal installers use fittings of this type when laying out ductboard air distribution runs that require directional branch connections at specified intervals along the trunk.

Key Features

• 5-inch diameter top takeoff configuration for ductboard trunk connections
• Fiberglass construction provides integrated thermal insulation
• Lightweight at 0.5 pounds for easy single-technician handling
• Designed for top-of-trunk branch duct connections in ductboard systems
• Manufactured by Lukjan Metal Products to standard HVAC duct fitting dimensions

Compatibility

Designed as an OEM-style replacement fitting for 5-inch branch connections in fiberglass ductboard HVAC distribution systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal installer following applicable mechanical codes. Shut down the air handling unit and confirm the system is unpressurized before cutting into any existing trunk duct. Use manufacturer-recommended ductboard knives and approved mastic or tape to seal all joints at the takeoff connection. Follow local mechanical code requirements and SMACNA ductboard installation guidelines for proper fitting attachment and sealing procedures.