Grandio Greenhouses Automatic Greenhouse Roof Vent Opener


On Sale Now! Save 6% on the Grandio Greenhouses Automatic Greenhouse Roof Vent Opener by Grandio Greenhouses at Ultimate Garden Supply. MPN: GRA-AUTO. Hurry! Limited time offer. Offer valid only while supplies last. Automatically opens and closes the roof vent/window when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens the vent. As the temperature cools, the mineral shrinks and a spring closes the vent and resets the piston. The opening and closing of the vent is gradual allowing just the right amount of air flow for cooling.Opens roof vent automatically as temperature warms for air circulation and heat relief, Closes when


Grandio Greenhouses Automatic Greenhouse Roof Vent Opener by Grandio Greenhouses
4.7 out of 5 stars with 8 reviews
Condition: New
Availability: In Stock
$79.00
$74.51
You Save: 6%


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Product Description & Reviews

Automatically opens and closes the roof vent/window when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens the vent. As the temperature cools, the mineral shrinks and a spring closes the vent and resets the piston. The opening and closing of the vent is gradual allowing just the right amount of air flow for cooling.

Features & Highlights

  • Opens roof vent automatically as temperature warms for air circulation and heat relief, Closes when temperature cools
  • Starting opening point: 75° F to 80° F
  • Solar powered, heat activated
  • No electricity needed

Additional Information

Brand:
Grandio Greenhouses
Category:
Window Openers
Model:
GRA-AUTO
MPN:
GRA-AUTO
UPC:
859248005106
Part Number:
GRA-AUTO
Binding:
Electronics

 


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