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Automatic Roof Vent Opener for the Palram Greenhouses

  • $ 85.00

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The Automatic Vent Opener was designed to automatically control the temperature in all Palram Greenhouses. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural wax that expand to push a piston, which raises the window, as the air gets warmer then contracts as it cools, closing with the use of a spring. The Automatic Vent Opener operates without the use of electricity.

  • Opens roof vent window automatically around 68°F for air circulation, closes when temperature cools
  •  Durable metal design with natural wax
  • Smart-Lock connectors make installation quick and easy
  •  Works with Palrams Nature Series (Mythos, Hybrid, Essence), Snap & Grow, Glory, Americana and Chalet greenhouses
  • 1 Year Limited Warranty


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  • Does this opener work with the Bella Hobby greenhouse?

    yes it does