20" x 38" x 10" Return Air Support Box
27 Available At All US Supply Locations

20" x 38" x 10" Return Air Support Box – Built for Strength and Airflow Performance
The 20" x 38" x 10" Return Air Support Box is engineered to support duct systems while maintaining consistent airflow throughout residential or commercial HVAC applications. Its durable build and precise sizing ensure a dependable component for long-term system efficiency.
Why Use the 20" x 38" x 10" Support Box?
This return air support box is fabricated from heavy-gauge galvanized steel, designed to withstand installation stresses and provide years of service. Beyond reinforcement, it improves airflow balance and supports duct connections in demanding environments.
- Heavy-Duty Material: Constructed from galvanized steel for structural integrity and corrosion resistance.
- Proper Sizing: Dimensions of 20" x 38" x 10" provide compatibility with standard ductwork layouts.
- Airflow Optimization: Designed to help reduce static pressure and maintain even system performance.
- Versatile Use: Suitable for both residential systems and light commercial HVAC installations.
- Contractor-Grade Design: Built for consistent results on job sites.
Technical Information
- Dimensions: 20" x 38" x 10"
- Material: Galvanized sheet steel
- Application: Return air duct support
- Weight: Approximately 15 lbs
Installation Guidelines
While this return air support box is designed for straightforward placement, installation should be performed by a licensed HVAC professional to ensure airtight connections and compliance with building codes. All seams and joints should be sealed with approved mastic or foil tape to maximize efficiency and prevent air leakage.
Contractor and Installer Notes
For Contractors: This product is job-site ready, offering the strength and reliability needed for professional HVAC system builds. Its robust construction minimizes callbacks and ensures a lasting installation.
For Skilled Installers: While manageable with basic sheet metal tools, proper sealing and alignment are essential to maintain performance. Professional installation is recommended for best results.
Key Features
- Galvanized Finish: Provides resistance to rust and wear.
- Reinforced Build: Supports duct stability and prevents sagging.
- Performance-Oriented: Designed to promote steady, efficient airflow.
- Adaptable Use: Effective across a wide range of HVAC layouts.
The 20" x 38" x 10" Return Air Support Box delivers a contractor-grade solution for supporting ductwork and maintaining airflow efficiency. Built for durability, it’s a reliable addition to any HVAC system installation.
Specifications
| Weight | 39.000000 |
|---|---|
| Length (inches) | 38 |
| Width (inches) | 28 |
| Item Type | HVAC Duct |
| Brand | Lukjan |
| Inclusions/Features | Done |
| MPN | CA4038282410 |
| Sub Type | Return Air Support Box |
| Height (inches) | 10 |
| Overall Width | 38 in |
| Item Returns | This item can be returned |
