Greenhouse Sale - TAKE 5% off select Greenhouse Kits! - Call for details

Ventomax Automatic Window opener

Our Price: $65.00
List Price: $69
Designed to be used for smaller window vents or cold frames
Stock #JUL-JU122

No electricity needed!, Solar-Powered
Controls top or side mounted window vents. for ventilation
Maximum ventilation is vital to any greenhouse in hot weather (85 degrees or warmer).

To offer you the lowest price on this item, Free Shipping does not apply. We will contact you with a quote before processing your order.
Usually ships within 3 days

Add Items to Cart

Enhance airflow with our Ventomax Louver & Window Opener. Opener ensures fully automatic opening and closing of your louver or window according to changes in temperature.

 • Ideal for greenhouses, shops, barns, or anywhere that additional airflow is needed.
• Solar-powered louver opener automatically opens and closes shutters as the temperature changes.
• Operating range is easily adjustable. The opener can be adjusted to automatically open at a temperature ranging from 60° F to 77° F.
• It is recommended that the opener be removed during the winter months.
• Does not require any electricity to function, it works by means of solar energy.
• Aluminum and stainless steel construction.

This is designed to be used for smaller window vents or cold frames

Replacement cylinder is available for the models.


Juliana Greenhouse

Juliana greenhouses are designed to withstand the extreme weather conditions in Scandinavia. They are constructed with only the most durable materials which is why every structure is made of engineered aluminum and fitted with twinwall polycarbonate. Polycarbonate is the most advanced insulating panel developed for use in greenhouses. Its double-walled structure gives it greater strength and superior insulating values with the air space built into the product. Twinwall polycarbonate also provides your greenhouse with an even diffused light which is optimal for growing plants.

Juliana Greenhouse
shop Juliana Greenhouse