The ABCF-100 series fans are designed to be lightweight and portable. Each one of these fans come with single-phase motors which are foot mounted along with the blower for easy installation. The ABCF-200 series feature heavy-duty fans built for industrial applications. These fans use a forward curved, squirrel cage impellers coupled with a large, heavy-duty steel housing. These fans produce a large volume of air with steady pressure. The ABCF-300 series are built to produce a large amount of pressure. These fans produce a pressure range between 8" H2O-52" H2O. The ABCF-400 series are primarily used for very large volume applications. These fans utilize large squirrel cage impellers and steel housings to provide air volumes between 2,800 CFM to 11,360 CFM.