Deflecto Dirb43 Aluminum Increaser/reducer, 3 In. To 4 In.

The Deflecto DIRB43 is an aluminum duct increaser/reducer designed to connect 3-inch ductwork to 4-inch ductwork. This adapter facilitates seamless transitions between different duct sizes, making it an essential component for heating, cooling, and ventilation systems throughout your home or building. Whether you're installing new ductwork, replacing existing runs, or connecting components with mismatched sizes, this increaser/reducer ensures proper airflow and system efficiency.

This fitting is particularly useful for dryer venting, bathroom exhaust, range hoods, and other HVAC applications where duct sizes need to be adapted. The secure connection between different diameter ducts maintains proper airflow during operation. The compact, lightweight design makes installation straightforward, even in tight spaces.

Features and Benefits

• Aluminum Construction: Made from aluminum for durable, reliable performance in ventilation applications.
• Secure 3 to 4 Inch Connection: Designed specifically to join 3-inch and 4-inch ducts with a snug, secure fit.
• Lightweight Design: Easy to handle and position during installation.
• Compact Fit: Fits into confined spaces and various installation scenarios.
• Versatile Applications: Suitable for dryer venting, bath fans, range hoods, and other heating and cooling ventilation needs throughout the home.

Specifications

• Brand: Deflecto
• Model: DIRB43
• Material: Aluminum
• Color: Silver
• Connection Size: 3 to 4 inches
• Diameter: 4 inches