GAF Master Flow 19.25 in. x 19.25 in. Automatic Gable Vent Shutter for Power Attic Vents - Weather-Resistant, Compatible with GAF EGV/PG Series & Most Gable Mount Fans, White Finish

Use with all attic power gable mount vents; moving air opens the shutter louvers only when the gable fan is operating; when the gable fan is off, shutter closes and helps prevent weather, insect, and rodent infiltration etc.; maintenance-free white aluminum construction; can be painted if desired. Insect screen NOT included.

• Automatic Operation for Efficient Ventilation - The GAF Master Flow Automatic Gable Shutter opens automatically when the vent operates, ensuring efficient airflow through your attic. Compatible with Master Flow and most popular gable mount power attic vents, it helps maintain optimal ventilation without manual intervention.
• Superior Weather and Insect Protection - Keep your attic protected when the vent is off. The automatic shutter effectively resists rain, snow, and insect infiltration, maintaining a clean and safe attic environment year-round.
• Durable Aluminum Construction - Crafted from high-quality white aluminum, this gable shutter is built to last. The sturdy material offers long-lasting performance, and the shutter can be painted to match your home’s exterior, providing both durability and aesthetic flexibility.
• Seamless Compatibility with GAF Master Flow Fans - Specifically designed for GAF Master Flow EGV/PG series electric gable fans, this automatic shutter integrates seamlessly, enhancing the performance of your attic ventilation system. It's also compatible with other popular gable mount power vents, making it a versatile choice for various setups.
• Easy Installation and Reliable Performance - Enjoy hassle-free installation and reliable operation with this automatic gable shutter. Its precise design ensures that louvers open only when needed, optimizing air movement and keeping unwanted elements out when the vent is not in use.