Greenhouse Roof vent automatic opener
Allows for automatic controlling of greenhouse temperature to provide ideal growing conditions, even when no one is at home
No batteries or electricity required
May be adjusted for different opening temperatures
Easily installed; simply replaces existing vent arm
One-year warranty; average life is several years.
Price: $44.18 / each
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— Ships via UPS from Grants Pass, Oregon USA
For more information, please visit the manufacturer
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