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WATSCO, INC.

WSO.B · NEW YORK STOCK EXCHANGE INC.

Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

Watsco, Inc. is the largest distributor of air conditioning, heating and refrigeration equipment, and related parts and supplies in the United States. Watsco was founded more than 60 years ago as a manufacturer of parts, components, and tools used in the HVAC/R industry.