Watsco (NYSE: WSO ) is the largest HVAC maintenance and repair service provider and distributor in the US with over 375,000 contractors and technicians. Watsco is benefiting from the industry transition to A2L refrigerants, a key catalyst couldAnalyst’s Disclosure:I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving co ...