Cooling the Sun Belt keeps Watsco hot. It is one of the largest independent distributors of residential and commercial heating, air conditioning, and refrigeration equipment, and parts and supplies (HVAC/R). Watsco's 560-plus distribution sites span more than 35 states, Canada, Puerto Rico, and Mexico. It also exports to Latin America and the Caribbean. Through subsidiaries, Watsco provides installation and repair equipment for its products. Customers number more than 88,000 contractors and dealers who install and replace HVAC equipment. Among its key suppliers, Carrier (now UTC Climate, Controls & Security) represents about 60% of all Watsco purchases.