The Horton WindShift WSE fan blade has been computer-optimized to provide a superior combination of increased airflow and reduced operating noise. With a swept-blade design, WSE generates greater static pressure at slower speeds. The WindShift WSE Modular Fan is available in diameters of 24" to 41" and 2.44" to 5.94" pitch widths. Other WindShift blades include WSC and WSD, which are engineered for low-restriction airflow applications and fit a narrower, more compact space. All of the WindShift blades contain UV-stabilized materials with high glass content.