* Duct Mounted Axial Fans o AP Series - direct driven o APS Series - direct driven, smoke spill o APB Series - belt-driven o BFA Series - bifurcated, direct driven * Wall Mounted Fans o SQ Series - square plate, direct drive * Axial Roof Units o RDE Series - downflow cowl, exhaust o RDS Series - downflow cowl, supply o RVE Series - vertical discharge o RSS Series - vertical discharge, smoke spill o HC Series - high capacity, vertical discharge o SS Series - smoke spill