Automatic Greenhouse Window Opener, Temperature Controlled Solar Heat Activated Roof Vent Opener, Galvanized Steel Auto Vent Opener for Greenhouse Hothouse Sunroom

Color: SilverMaterial: Galvanized SheetSize: Maximum Height to Open the Window: 18 inPackage Includes: 1 x Automatic Window Opener Assembly Kit, 1 x User ManualNote:- Please refer to the measurement. Tiny measuring error is allowable in normal range.- There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item.

• Regulate Greenhouse Ventilation Automatically: Automatically opens and closes greenhouse windows as the temperature changes, providing fresh airflow without constant adjustments; ideal when you're away
• Temperature Responsive: A temperature-sensitive cylinder governs window movement between 61-77℉ (16-25℃), fully opening around 86℉ (30℃); no wiring, batteries, or manual intervention needed
• Controlled Window Opening: Opens vents or roof windows up to 18 in, designed for outward-opening greenhouse windows up to 15.4 lb; controlled movement prevents sudden drops or slamming
• Durable Galvanized Sheet: Crafted from rust-resistant galvanized sheet, ideal for humid environments; endures repeated opening cycles for long-term use in your greenhouse
• Multiple Uses: Ideal for greenhouse roofs, hothouses, and sunrooms needing ventilation; releases excess heat on warm days; follow instructions for seasonal handling and proper setup