Description

16″ x 8″ Transition Box – Streamlined Airflow for Larger HVAC Zones

16″ x 8″ Transition Box stands out as a reliable, purpose-built solution for ducting chilled air from the source to the interior grilles. Designed for use in marine vessels, RVs, and other compact living spaces, this transition box plays a crucial role in ensuring consistent, quiet, and balanced air distribution throughout your system.

Crafted to work seamlessly with MSI grilles and ducting products, this transition box provides an airtight and secure connection point between your flexible ducting and wall, ceiling, or floor-mounted grilles. Whether you’re installing a new system or upgrading an existing one, this box allows for a clean and professional finish behind the grille while optimizing airflow through your duct network.

With its 16″ x 8″ dimensions, this unit is best suited for areas where greater air volume is required—such as main cabins, salons, control rooms, or any space that demands strong and even cooling. The wider design minimizes air resistance and turbulence, promoting a smoother flow of chilled air into the desired living space.

Whatever your choice, wood-framed or plastic-framed grilles, you will require a way to effectively duct the chilled air to them. We offer a wide selection of plastic ducting products—from the hose adapter at the air handler to the transitions behind the grilles. The 16″ x 8″ Transition Box is engineered to be a key part of that lineup, providing dependable performance where it matters most.

Built from durable, lightweight materials, this box is designed to handle the vibrations, humidity, and confined spaces often encountered in marine and RV installations. It’s easy to mount, resistant to wear, and built to last.

This item ships direct from the manufacturer, ensuring optimal quality control and faster lead times.

Key Features:

• Compatible with MSI ducting and grille systems

• 16″ x 8″ size for high-volume airflow zones

• Works with both plastic and wood-framed grilles

• Ideal for marine, RV, and mobile HVAC applications

• Lightweight and durable construction

• Ships direct from the manufacturer

Optimize your HVAC layout with the 16″ x 8″ Transition Box—the perfect fit for larger vents and superior airflow.