The Zephyr™ WM model series fans are a great application for projects requiring gable-end or wall mount installations. Featuring both solar fan and louvered vent in one unit, The Zephyr™ WM series wall mount fans offer a complete solar powered ventilation solution. The Zephyr™ WM model series is a great alternative for customers who want the benefits of solar powered ventilation without the need for making a roof penetration.