Greenhouse Window Openers, Temperature Controlled Automatic Vent Opener, 2 Spring Heavy Duty New Uprated Piston, Up to 15 Kg Load Solar, for Greenhouse Garden Temperature Control (Color : 1pcs)

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【Greenhouse Window Opener】: The window opener will automatically open and close your greenhouse windows to control the indoor temperature, we recommend you to buy two at a time
【Sturdy Design】: 2 springs make it very strong, suitable for most greenhouses, run free with solar energy
【Opening Temperature】: The temperature change in your greenhouse will trigger the opening device, the working conditions are - * Start to open - 15°c - 23°c (59f-73f) * Full open temperature 35° (19f) or above * Full open Distance 45cm ( 18") * Maximum open weight 15 kg
【Easy Installation】: Can be fixed on the aluminum frame, or screwed into the frame, including installation instructions, easy to install, adjustable to different temperatures, including screws for accessories (please make sure all accessories are tightened)
【Things to Remember】: Please make sure your greenhouse windows are free to open at least 45 cm (18 inches) We provide replacement parts for most items

Product description:
This opener will automatically open and close your greenhouse windows to maintain optimal growing temperatures and prevent your greenhouse from overheating!
Feature:
2 spring automatic greenhouse windows roof vent opener heating kit glass
This vent opener comes with two springs - not just one
This makes the vent opener stronger and more reliable
Double springs can lift up to 15 kg
Adjustable vents: select the temperature between 15°c and 23°c and it will open when you choose
Specification:
Open temperature adjustable from 15°c to 23°c (59 f - 73 f)
Full open temperature 35° (19 f) or above
Fully open 45 cm (18")
Maximum open weight 15 kg (30 lb)
Package
1* Greenhouse automatic window opener (including screws)
1*Installation manual

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Greenhouse Window Openers, Temperature Controlled Automatic Vent Opener, 2 Spring Heavy Duty New Uprated Piston, Up to 15 Kg Load Solar, for Greenhouse Garden Temperature Control (Color : 1pcs)

1.Color:1pcs