Schaefer Versa-Kool Circulating Fans:
• Keep your greenhouse cool in summer.
• Avoid cold spots in the winter.
• Continually refresh the supply of carbon dioxide for healthy plants.

Schaefer Versa-Kool Circulating Fans:
• Keep your greenhouse cool in summer.
• Avoid cold spots in the winter.
• Continually refresh the supply of carbon dioxide for healthy plants.

20" Motorized shutters can be used to ensure complete closure when the fan is off and complete opening when the fan is on.

Call or email us if you’d like to discuss your particular application.

16" Motorized shutters can be used to ensure complete closure when the fan is off and complete opening when the fan is on.

Call or email us if you’d like to discuss your particular application.

Motorized shutters can be used to ensure complete closure when the fan is off and complete opening when the fan is on. Intake Shutters should be one size larger than the exhaust fan selected.

Call or email us if you’d like to discuss your particular application.

High quality 20" Heavy Duty PVC Intake Shutter; Hinged and balanced with such precision that the suction power of the exhaust fan on the opposite end of the greenhouse will pull the shutters open when the fan is running. The shutters then automatically close when the fan shuts off.

Call or email us if you’d like to discuss your particular application.

High quality 16" Heavy Duty PVC Intake Shutter; Hinged and balanced with such precision that the suction power of the exhaust fan on the opposite end of the greenhouse will pull the shutters open when the fan is running. The shutters then automatically close when the fan shuts off.

Call or email us if you’d like to discuss your particular application.

High quality 20" Aluminum Intake Shutter; Hinged and balanced with such precision that the suction power of the exhaust fan on the opposite end of the greenhouse will pull the shutters open when the fan is running. The shutters then automatically close when the fan shuts off.

Call or email us if you’d like to discuss your particular application.

High quality 16" Aluminum Intake Shutter; Hinged and balanced with such precision that the suction power of the exhaust fan on the opposite end of the greenhouse will pull the shutters open when the fan is running. The shutters then automatically close when the fan shuts off.

Call or email us if you’d like to discuss your particular application.

Replacement Cylinder (paraffin wax inside the black cylinder and expands a piston that opens the cantilevered vent).

(aluminum bracket sold separately)