Best Greenhouse Automatic Vent Opener

BIBISTORE Greenhouse Automatic Vent Opener Solar Roof Vent Opening Kits for Wooden&Aluminum Greenhouse Auto Hothouse Window Opener Agriculture Greenhouse Acessories Lifts 15.4 Lbs(7kg)

Automatic Window Opener Prevent hobby greenhouse overheating.
Auto Open/Closed.The greenhouse window opener does not consume any power, no batteries or electrical power needed.
Ideal for your greenhouse window, wall and hobby vents in higher wind situations.
Starts opening between 59 - 77°F, Replaces manual vent arm.
Screw directly into polycarbonate panels, wood, or metal frames..

Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops..
High sensitive, automatic respond to weather changes, so you don't need to stay near the greenhouse. As the temperature changes automatically,....
This is a replacement cylinder for automatic window opener. Deal for your greenhouse window--opens and closes your greenhouse window..
Window opener for greenhouse can time saving, also can supply a better temperature condition of plant's growth..
Great for most greenhouse to open or close window automatically. Adjustable for different opening heights and mountable two different ways, taking up....

【High Quality】This automatic window opener is constructed from quality iron. The plastic-sprayed aluminum frame is more shiny, durable and....
【Environmental friendly】Using solar energy, non-electric power, the greenhouse windows can be opened or closed as the temperature rises or falls..
【Good window opening tool】This opener will automatically open and close your greenhouse windows to maintain the best desired temperature and....
【Easy to stall】Easy to install to your greenhouse vents or windows using the provided screws and clips or your own fasteners to enter the....
【Working Conditions】Do not apply excessive load by locking or covering the windows. Greenhouse automatic ventilation window openers cannot be used....

【Suitable for Most Greenhouses】 This corkscrew will automatically open and close your greenhouse windows to maintain the optimal growing....
【High-Quality Structure】 Reliable, high-quality anodized anodized aluminum automatic window opener..
【Working Conditions】 Start opening 20°C-25°C (68-77°F).
full opening distance 45 cm (18 inches), maximum opening weight: 7kg / 15lb..
【Environmental Protection】 Non Electric uses solar energy to open or close the greenhouse vents as the temperature rises or falls, including....
【Convenience】 Sensitive opener can be clamped or screwed on the greenhouse frame without drilling holes..

Designed for : With this greenhouse vent autovent it can prevent greenhouse overheating. Ideal for your greenhouse window--opens and closes your....
Weather Resistant : This solar heat sensitive adopted elongated aluminum cylinder with paint spraying, weather resistant. Aluminum frame looks more....
Prevents Your Greenhouse from Overheating : As the temperature changes automatically, this auto thermo for window maintains the best growing....
Solar Energy Powered : Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. This solar heat sensitive....
Warm Tips : Do not use this opener anywhere the temperature will exceed 45° (122F). To use with the palram greenhouse, you need to use the drilling....

KOXXUD Double Spring Greenhouse Window Opener improves the low bearing capacity of the single-spring window opener and optimizes the problem of rust-prone black iron spray paint window opener, which adapts high-quality aluminum alloy material, the thrust is larger and more durable..
【VERY ECO-FRIENDLY】Double spring greenhouse window opener does not require batteries or electricity, as the indoor temperature and air pressure rise or fall, it automatically opens or closes the greenhouse's vents, which maintains the optimal temperature for plant growth..
【EASY INSTALLATION】Easy installation and storage of double spring greenhouse window opener via the video linked of our products or installation manual..
【DOUBLE SPRING DESIGN】According to previous customer feedback, we upgraded the old single spring to double spring, and the maximum bearing force has been increased from 7kgs/15lbs to 15kgs/33lbs, so that the window opener can not only be used in lightweight aluminum alloy windows, but also used on wooden windows..
【NOTE】Minimum opening temperature: 15-25℃.

HIGH QUALITY MATERIALS-Made of high quality of aluminum and stainless steel.Durable and no rust..
NO ELECTRIC POWER NEEDED&AUTOMATIC-Solar powered , automatically open or close the greenhouse vents as temperature rises or drops..
DOUBLE SPRING-Double spring type, suitable for windy mountain area, resist wind twist.Stronger Force,lifts up to 15.4 Lbs(7kg)..
EASY INSTALLATION-Comes with a fitting accessory pack and a detailed manual for easy installation..
OVERHEATING PROTECTION-This automatic window opener will help you maintaining the best growing temperature and prevent your greenhouse from....

Suitable for Most Greenhouses：The maximum load-bearing capacity of the glass of the ventilation window does not exceed 15lb..
Working Condition：The maximum height of the open window is about 45 cm (18 inches)..
Automatic Opening/ClosingUses Solar energy only, no power required..
Excellent Quality：Stainless steel galvanized sheet, double spring design, automatic temperature adjustment 15-25°..
Tips：Note: Do not apply excessive loads by locking or covering window.The automatic ventilation window opener in the greenhouse cannot be used in an....

【Ideal Growing Environment】- Our walk-in greenhouse is the perfect solution for a productive garden. Enclose plants and veggies in the protected environment of our greenhouse to keep them safe from harsh weather conditions, pests, and more..
【HEAVY-DUTY BASE AND FRAME】- This greenhouse measures 81” (L) x 93”(W) x 98”(H). The walk-in design features plenty of room for your plants to grow and for you to easy-care..
【Durable Frame】- The walk-in greenhouse is made of fir frame, ensuring backyard greenhouse durability and reliability throughout the seasons to come..
【Roof Vent】-The greenhouse features an adjustable roof vent you can use to let in fresh air and easily manage excess moisture. Fine-tune the angle and bring balance to your grow space..
【Polycarbonate Panels】- The polycarbonate panels allow plenty of natural sunlight in while keeping out harmful UV rays, moisture, and insects..