Aerodynamic wedge-shaped dome design enhances airflow efficiency and reduces wind resistance. Removable strong fine mesh screen with radius corner design ensures durability and easy cleaning. Manual crank style handle allows for easy operation and control of the fan. Designed for 12 volt systems only; using 110/115/220 volt power sources damage the unit. Compact size of 35.5*35.5cm with a rough cut-out opening dimension of 14 inch x 14 inch for easy installation. This fan features a sleek aerodynamic wedge-shaped dome that not only looks modern but also optimizes airflow. The removable screen is crafted from strong fine mesh, ensuring that it can withstand the elements while providing easy access for cleaning. The manual crank style handle offers a user-friendly experience, allowing you to adjust the fan with ease. Designed specifically for 12 volt systems, this fan is perfect for RVs, boats, or any other application where a 12 volt power source is available. With a compact size and straightforward installation requirements, this fan is an excellent addition to your ventilation needs. Color: White Material: ABS Package Contents: 1 * RV Ventilation Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.