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Hoklartherm | RIGA Automatic Roof Vent Opener

Hoklartherm

Item:

$119.00
$119.00
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Estimated Arrival: Between Apr 07 and Apr 12.

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RIGA Automatic Window Opener (no electricity needed) with quick release arm - allows the opener to be disconnected in adverse weather conditions. 

The black piston cylinder is filled with a mix of oils that naturally expand around 73 degrees. As the oil expands, it will begin to push out the rod of the piston and open your window. The springs and the weight of the window will pull the window shut when the temperature drops. 

    Hoklartherm Greenhouse Assembly

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