Description
Silver double spring greenhouse window openers suitable for Aluminium and Wooden frames. Extra strength for durability and more stable in strong winds or fluctuating conditions.
Temperature controlled greenhouse vent opener automatic. Uses the heat in your greenhouse to automatically open window vents.
Supplied with our very own universal power piston which is also available separately should you ever need spares.
Starts to open around 16° to maximum 30°. Opening force of 7kg.
Easy installation, watch the video for a basic guide, instructions included.
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