4 In. Diameter Silver Aluminum Increaser/reducer Model Dirb43

Introducing the Deflect-O 4 in. D Silver Aluminum Increaser/Reducer, now available at Mack And Sons Supply in Oberlin, OH. This versatile duct accessory is designed to facilitate seamless connections between different duct sizes, making it an essential component for your heating, cooling, and ventilation systems. Whether you're a professional contractor or a DIY enthusiast in Oberlin, this increaser/reducer is a must-have for any plumbing or heating project.

• Durable Material: Made from high-quality aluminum, this increaser/reducer is built to withstand the rigors of everyday use while providing reliable performance.


• Perfect Fit: Designed to connect 3-inch duct to 4-inch duct, ensuring a snug and secure fit for optimal airflow.


• Compact Design: With a height of 3.37 inches and a diameter of 4 inches, this product is easy to install in tight spaces, making it ideal for various applications.


• Lightweight: Weighing only 0.9 pounds, this increaser/reducer is easy to handle and transport, simplifying your installation process.


• Versatile Use: Suitable for dryer, bath, and range venting, this product is perfect for a wide range of heating and cooling applications.

Imagine upgrading your ventilation system with the Deflect-O 4 in. D Silver Aluminum Increaser/Reducer. This product allows you to efficiently transition between duct sizes, ensuring that your home or workspace maintains optimal airflow and temperature control. Whether you're replacing old ductwork or installing a new system, this increaser/reducer will help you achieve the best results.



In conclusion, the Deflect-O 4 in. D Silver Aluminum Increaser/Reducer is an indispensable tool for anyone looking to enhance their ducting system. Its durable construction and versatile design make it an excellent choice for both professionals and DIYers in Oberlin. Don't compromise on quality—get your increaser/reducer today at Mack And Sons Supply in Oberlin, OH, and ensure your ventilation system operates at peak efficiency.