Lukjan DX790410 4 Inch Duct Reducerette with Drives

Product Description

The LUKJAN DX790410 is a 4-inch duct reducerette designed for use with 10-inch duct systems. It ships with drive cleats, allowing installers to secure the fitting to adjacent duct sections without sourcing separate fasteners. This type of sheet metal fitting is used to step down duct size at a branch takeoff or transition point within a forced-air HVAC system. HVAC sheet metal workers and installers use reducerettes like this one to maintain proper airflow balance and velocity when transitioning between duct sizes on supply or return trunk lines.

The DX790410 is suited for residential and light commercial forced-air HVAC duct systems where a 10-inch main duct requires a 4-inch reduction. It is commonly installed at branch connections, where the trunk line feeds into a smaller lateral run serving a room or zone. The included drives make field installation straightforward during new construction or retrofit duct work.

Key Features

• 4-inch reducerette sized for use with 10-inch duct
• Drive cleats included for direct attachment to duct sections
• Sheet metal construction for standard forced-air duct applications
• Designed for trunk-to-branch transitions in supply or return duct systems
• Compatible with standard rectangular duct assembly methods

Compatibility

Designed as an OEM-style sheet metal duct fitting for use in standard residential and light commercial forced-air HVAC duct systems requiring a 4-inch reducerette on a 10-inch duct.

Installation Notes

Installation is typically performed by a licensed HVAC technician or qualified sheet metal worker. Power down the air handling unit and confirm the system is off before cutting into or modifying any duct section. Drives should be seated fully and crimped securely to prevent air leakage at the joint. All duct connections should be sealed with approved mastic or metal-backed tape in accordance with local mechanical codes.

Technical Specifications

• Product Type: Reducerette
• Reducer Size: 4 inches
• Duct Size: 10 inches
• Includes: Drive cleats
• Category: HVAC Duct Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: DX790410