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Helfer System
Helfer duct systems are made up of a series of 15" round louvered ducts. All of the systems come standard with a center placed 48" Helfer duct. 24" or 48" extensions are available for bins with an eave height of greater than 16'. All systems are equipped with a 9" x 14" fan inlet.
Installation is simple with the Helfer's quick connect, stove pipe like joints. Many installations take less than one hour.
Be ready this harvest - Add a Helfer aeration system into your existing flat bottom bins.
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