CONTINENTAL FAN AXIAL EXHAUST FAN 830 CFM - RMD-12-11 THIS DOWNBLAST FAN FEATURES DIE FORMED AXIAL FAN BLADES RIVETED TO A STEEL HUB. SUITABLE FOR ROOF OR WALL MOUNTING. SPUN ALUMINUM HOUSING FOR WEATHER DURABILITY. INCLUDES BIRDSCREEN TOTALLY ENCLOSED PERMANENTLY LUBRICATED BALL BEARING MOTOR AND A DISCONNECT SWITCH RATED FOR 110 DEGREES F. 115V SINGLE PHASE OPERATION. 830 CFM. HORSEPOWER RATING BASED UPON MAXIMUM SPEED/LOAD.