HAF Fans for interior ventilation of your greenhouse or high tunnel are ideal for maintaining optimum air circulation for all varieties of plants. Among the easiest to install, and most affective at moving air, the Interior HAF Fans for greenhouses are available in 12" diameters up to 24" diameter, and come complete with a cord and standard 115V plug. Please see the bullets and table specs below:

• Fans are available in 12", 16", 20", 24" diameter 
• Includes mounting bracket (hot dip galvanized bracket with U bolts and nuts)
• Aluminum propellers
• Corrosion resistant; includes white powder coated fan guards 
• 10 ft. cord and 3 prong cord already attached and pre-wired for 115V
• Direct drive and highly efficient motors with completely sealed ball bearings
• Can work in conjunction with standard thermostats or can be set up to have separate variable speed control 
• HAF Fan ratings measured in thrust cubic feet per minute (Thrust CFM)

Please see the table below to compare the different specs of the available sizes.

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