DOWCO

CENTRIFUGAL PUMPS.

AIR DISTRIBUTION GRILLES, REGISTERS, DIFFUSERS (FIXED OR ADJUSTABLE), VENTILATING LOUVERS, GRILLS, AIR VOLUME CONTROL DAMPERS, FIRE RELIEF, AND BACKDRAFT DAMPERS, ROOF VENTILATORS, AIR TURNING AND CONTROL DEVICES, LOUVER AND DAMPER BLADES AND HARDWARE, COOLING TOWERS AND SHEET METAL ACCESSORIES-NAMELY, SHEET METAL DUCTS AND PARTS THEREFOR FOR AIR CONDITIONING SYSTEMS