Roof Vent Auto Opener
$90.00
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Roof Vent Auto Opener
Add additional roof vents, sidewall windows, insect screens and more with our factory built-customization option. Upgrade our standard natural ventilation and tweak your growing space to suit your USDA growing zone and climate.
Features
Greenhouse Details
Additional information
| Weight | 3 lbs |
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| Dimensions | 10 × 6 × 2 in |
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| Specifications | a heavy spring pulls the window closed. No electricity needed!, Add automatic openers to your roof vent window for solar-powered ventilation. The mechanism is filled with paraffin oil, which expands when the temperature rises. When temperatures fall |