HART & COOLEY

AIR CONDITIONING AND FURNACE ACCESSORIES - NAMELY, BASEBOARD AND FLOOR REGISTERS, SIDE WALL REGISTERS; VENTILATING REGISTERS; CEILING DIFFUSERS; PERIMETER DIFFUSERS; COMMERCIAL REGISTERS AND GRILLES USED IN HEATING AND AIR CONDITIONING SYSTEMS; DAMPERS; DAMPER KITS COMPRISING DAMPER BEARINGS, COUNTERWEIGHTS, CHAIN, CHAIN COUPLING AND CHAIN LOCK; DAMPER REGULATORS AND REGULATORS AND REGULATOR SETS COMPRISING CHAIN, PULLEYS, HOOKS AND SCREWS PACKAGED TOGETHER; AND GAS VENT PIPES AND CHIMNEYS