About This

• Galvanized steel sheet: Greenhouse window opener galvanized steel sheets offer excellent corrosion resistance. Greenhouse vent opener strength and toughness are well-balanced, allowing them to withstand large external forces without deformation or fracture. (And the vent opener galvanized layer is uniform and smooth, with a beautiful appearance.)
• Dual Spring Design: The double spring greenhouse vent opener can bear 30lbs (15kg), and the thrust is stronger than the single spring; the automatic greenhouse vent opener can be used in different weather.
• Solar Heat Sensitive: The greenhouse window opener operates between 15℃ to 25℃ (60℉ - 77℉); the automatic window opener cannot be used at temperatures above 60℃(140℉). The window opener adapts to various weather conditions. This vent opener helps maintain an optimal growing environment inside the greenhouse with temperature control.
• Adjust Indoor Ventilation Conditions: Greenhouse window opener kit, maximum window opening is about 45cm /17.72 inches. The window opening time can be manually adjusted to control the temperature. Solar automatic window opener through temperature management to optimize plant health.
• Easy Installation: Installing the greenhouse vent opener is quick and straightforward with the provided clamps and screws. Please put the black bar into the refrigerator for at least 5 minutes to make the automatic window opener cylinder rod fully retracted before you assemble the roof vent opener.