| GENERAL CHARACTERISTICS ITEM DESCRIPTION | FULLY ADJUSTABLE,GANG OPERATED CURVED BLADES MOVE FROM FULL OPEN TO FULL CLOSED POSITIONS TO CONTROL AIR DIRECTION AND VOLUME,DISTRIBUTES AIR EVENLY TO ENTIRE GRILLE FACE AT ALL TIMES,FACTORY ASSEMBLED,RATTLE FREE,MADE OF 14 GAUGE STEEL,INSTALLS WITH TWO SCREWS,SIZE 20 IN. BY 14 IN. COMPLETE WITH AN ADAPTER FOR REGULATOR CONTROL FOR OPERATION FROM A KNOB LOCATED AT CEILING |