Product details:

Zephyr Hi-Performance Roof Vents are designed for long life, at a value price. Roof domes are available in 3 colors: White, Smoke and for the first time ever, Clear, to let in more natural light than ever before. The Zephyr vents are equipped with whisper quiet fans, so that you will hardly know they are on. The Zephyr vents are equipped with 12-Volt DC fan motor with 3 forward speeds and two reverse speeds that can move up to 920 CFM of air, to make sure the fresh clean air comes in and the unpleasant stale air goes out. All Zephyr vents come packaged with a 5 in. white garnish for the perfect fit, look and a weather tight seal to keep out the elements when closed.