STERLING

FINNED RADIATOR ELEMENTS, ENCLOSURES, FITTINGS, AND PARTS; BASEBOARD AND SUSPENSION TYPE FINNED TUBE HEATING SYSTEMS; GAS-FIRED DUCT FURNACES, GAS-FIRED SPACE UNIT HEATERS; PROPELLER FANS AND CABINET BLOWERS FOR HEATING AND AIR CONDITIONING DUCT SYSTEMS; UNIT HEATERS, MAKE UP AIR UNITS, ROOFTOP HEATING AND COOLING SYSTEMS, FIRE DAMPERS AND ENCLOSURES