Solar Shutter Control Kit
Automate our Aluminum Shutter sizes 16", 18", 20", 24", and 30" (C3212) to let fresh air into your greenhouse ...
Mega Vent Control, aluminum
With a 26-lb. lifting capacity, twice that of standard solar openers, the Mega Vent is the best choice for heavier roof vents...
Manual Vent Control (C3535)
Lift heavy vents or skylights with this precision-built vent control. Smooth running gears lift and hold vent at any opening ...
USES NO ELECTRICITY! Opens and closes by a temperature sensitive spring mechanism. Range 40ºF to 70ºF. Install one front vent...