Available in 6x8, 8x8, and 8x6. Our crawl space power vent is truly one-of-a-kind. And that’s because they are the only window-style power vents you can buy. It’s so simple. It’s so stylish. Just open the sash door and the powerful installed fans automatically turn on to quickly exhaust moisture, stale air, and foul odor from your crawl space to help prevent mold, mildew, and wood rot. Airtight closure completely seals the opening from the elements during the cold winter to keep your floor warm and to help lower your heating bills. It’s the only crawl space ventilation that’s operation is as simple as opening a window! Call today to order or with any questions!