8" x 8" x 7" Diffuser Box, Top Outlet

Lukjan Top Outlet Diffuser Box – Durable Transition for HVAC Systems

The Lukjan Top Outlet Diffuser Box is designed to connect square registers or grilles to round duct systems, providing a secure and efficient transition for balanced airflow. Built with durable materials and engineered for reliability, it is suitable for residential and light commercial HVAC installations.

With its top outlet design, this diffuser box supports effective air distribution while simplifying duct connections. Its rugged construction ensures dependable performance under standard system demands.

Contractor Advantages

This component is manufactured for professional HVAC applications where consistent quality and ease of installation are essential. The box provides a precise fit for common register dimensions, reducing installation time and ensuring reliable airflow performance in new construction or retrofit projects.

Key Features

• Top Outlet Design: Directs airflow efficiently into the duct system.
• Durable Construction: Built from quality materials for long service life.
• Standard Sizing: Compatible with common register and grille dimensions.
• Secure Connection: Provides a tight fit between square openings and round collars.

Technical Specifications

• Dimensions: 8" x 8" x 7"
• Collar Size: 7 inches
• Material: Galvanized steel, suitable for HVAC system use
• Application: Register-to-duct transition box

Installation Notes

Installation should be completed by qualified HVAC professionals to ensure proper alignment, sealing, and compliance with building codes. Correct placement and secure duct connections are necessary to maintain airflow efficiency and prevent leakage.

Professional Use Case

The Lukjan Top Outlet Diffuser Box is a practical solution for contractors requiring a rugged, easy-to-install transition component. Its durable construction and precise sizing make it a dependable choice for both retrofit and new HVAC installations, supporting consistent airflow distribution and long-term reliability.