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CHANGE MOORE Auto Vent Opener Automatic Greenhouse Window Opener Roof Vent Opener Auto Vent Kit Sensitive Gardening Tools Automatic Greenhouses Supplies (Single Spring Up to 33lbs)

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$55.99

$ 29 .99 $29.99

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  • Temperature Sensitive Ventilation : Our automatic window opener responds to temperature changes, efficiently regulating your greenhouse's internal climate. As the temperature rises, the gas-filled cylinder expands, gently pushing the window open. Once the temperature cools down, the spring mechanism closes the window smoothly
  • Reliable Helper : Crafted from premium-grade anodized galvanized steel, this window opener guarantees long-lasting performance. Greenhouse vent opener can withstand the demands of greenhouse environments, ensuring it remains your trusted gardening companion for years
  • Wide Temperature Range : Operating between 15°C to 25°C (60°F - 77°F), the opener adapts to various weather conditions. Greenhouse automatic vent opener achieves a full opening at temperatures above 35°C (95°F) and offers a maximum vent distance of 45cm (18"), promoting optimal air circulation
  • No Batteries Required : Our automatic window opener is completely self-sufficient and doesn't rely on batteries or electricity for operation. No additional power source is needed, saving you money and reducing environmental impact
  • Easy Installation and Compatibility : Installing the auto vent opener is quick and straightforward with the provided clamps and screws. Greenhouse window opener fits most greenhouse windows and seamlessly integrates with roof vents for houses, making it a versatile choice for different setups



Product Description

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Stu TO
2025-08-11 17:24:07
Using this for a new green house we just built for our urban farm. I just love the concept of having a gas-filled piston open and close a venting window based on temperature alone. No electricity, no mechanics. Just a simple, elegant design.On the practical side, it does the job in great fashion. The temperature in my greenhouse is moderated just right. Plants are happy.On implementation, I found I had to mount the inside part of the mounting arm on a 1.5" thick piece of wood to prevent the arm from scratching against the window pane. That wasn't hinted at in the instructions, and it took us a while to figure that out.
normalman
2025-08-10 10:01:55
Bought this for my wife's green house. Pack of 2. Works great. Had my doubts installing because it was hot and wax cylinders were extended. Put them in the fridge to make them retract. This made install easier. After install they both slowly opened and stayed open until we had a cool snap. When temps fall below 70F they slowly close. Easy to install. Highly recommend.
star_slit
2025-07-20 14:05:55
Easy to install and work great. Saved me so much time having to manually open and shut the vents with every temperature fluctuation that Idaho springs and summers can bring. Saved my flowers from cooking when I forgot to open things up on hot summer days. Highly recommend for any greenhouse.
MRKery
2025-07-19 17:35:07
Even putting the pistons into the fridge and freezer, the still would not retract at all.
paul rousselle AIA
2025-07-15 11:13:54
quality materials and works flawlessly - installation under 15 min. on greenhouse roof vent.
MeAtHome
2025-07-03 10:11:13
These work exactly like they should. My biggest complaint is the installation instructions but there are multiple videos online on how to install these hinges as well as operating tips like, in cold climates you need to bring inside the gas-filled cylinders to keep them from freezing.
cordell atkins
2025-06-20 15:08:12
They work perfectly as advertised. I am totally impressed.
Mariah B.
2025-06-04 16:44:43
HIGHLY RECOMMENDED!!!! I ended up buying 2 more since they did so good. They are easy ro install and easy to temp control.
Stu TO
2025-05-20 12:32:32
Using this for a new green house we just built for our urban farm. I just love the concept of having a gas-filled piston open and close a venting window based on temperature alone. No electricity, no mechanics. Just a simple, elegant design.On the practical side, it does the job in great fashion. The temperature in my greenhouse is moderated just right. Plants are happy.On implementation, I found I had to mount the inside part of the mounting arm on a 1.5" thick piece of wood to prevent the arm from scratching against the window pane. That wasn't hinted at in the instructions, and it took us a while to figure that out.
normalman
2025-05-07 14:50:45
Bought this for my wife's green house. Pack of 2. Works great. Had my doubts installing because it was hot and wax cylinders were extended. Put them in the fridge to make them retract. This made install easier. After install they both slowly opened and stayed open until we had a cool snap. When temps fall below 70F they slowly close. Easy to install. Highly recommend.
star_slit
2025-04-19 17:54:32
Easy to install and work great. Saved me so much time having to manually open and shut the vents with every temperature fluctuation that Idaho springs and summers can bring. Saved my flowers from cooking when I forgot to open things up on hot summer days. Highly recommend for any greenhouse.
MRKery
2025-04-09 13:42:23
Even putting the pistons into the fridge and freezer, the still would not retract at all.
paul rousselle AIA
2025-04-04 13:45:17
quality materials and works flawlessly - installation under 15 min. on greenhouse roof vent.
MeAtHome
2025-03-30 15:00:20
These work exactly like they should. My biggest complaint is the installation instructions but there are multiple videos online on how to install these hinges as well as operating tips like, in cold climates you need to bring inside the gas-filled cylinders to keep them from freezing.
cordell atkins
2025-03-04 15:25:39
They work perfectly as advertised. I am totally impressed.
Mariah B.
2025-02-11 12:51:33
HIGHLY RECOMMENDED!!!! I ended up buying 2 more since they did so good. They are easy ro install and easy to temp control.
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