About This

• TEMPERATURE-ACTIVATED AUTOMATIC VENTILATION: This automatic greenhouse window opener features a solar heat sensitive hydraulic cylinder that triggers between 60°F - 77°F (15°C-25°C). It reaches a maximum opening distance of 18 inches, ensuring optimal airflow without manual monitoring. It responds very accurately to temperature changes and works like a charm season after season
• ECO-FRIENDLY & NO BATTERIES REQUIRED: Utilizing solar thermal energy, this non-electric auto vent kit is entirely self-sufficient. The gas-filled cylinder expands to open the vent and contracts as temperatures drop. It's a set and forget device—no more running out to the greenhouse every time the sun comes out
• Temperature-Controlled Ventilation for Your Greenhouse: Our automatic window opener efficiently regulates your greenhouse climate by responding to temperature changes. As the temperature rises, the gas-filled cylinder expands, automatically opening the window. When the temperature drops, the spring mechanism smoothly closes the window, ensuring optimal airflow and temperature control.
• UNIVERSAL DESIGN & HEAVY-DUTY LIFTING: This versatile window opener for greenhouse is compatible with most roof vents, side-hung, or upward-hung windows in greenhouses, sheds, and cold frames. Includes all necessary greenhouse supplies (clamps and screws) for a hassle-free install. This thing is beefy and has no problem lifting reinforced PC panels
• EASY INSTALLATION & RELIABLE PERFORMANCE: This maintenance-free greenhouse vent opener ensures smooth operation for all gardeners, allowing you to focus on plant care. Installation is straightforward even for someone who isn't very handy, fitting perfectly on most standard greenhouse frames