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Johnstone Supply Evansville is a leading HVAC/R Wholesale Distributor with access to over 70,000 locally stocked products and inventory so you can get it same or next day in most cases. Our product selection is continually growing to meet the needs of HVACR contractors to ensure we have the best brands and technology. Plus, our relationships with hundreds of the industry's top manufacturers give you access to a million special order parts. From equipment, to parts, to supplies you can be confident Johnstone has what you need today. Johnstone Supply: Making it Easier to do Business.

Founded by George Koch, Koch Air has been a distributor of Carrier products since 1936, and was the first Carrier distributor outside of Carrier headquarter city, Syracuse, N.Y. Koch Air, which remains family owned and operated by Robert Koch II, is the second-largest independent Carrier distributor in the United States. What began as an installation and repair business has grown to focus on distribution and excellent service with 190,000 square feet of equipment and parts warehousing and a fleet of 11 delivery trucks. Koch Air is headquartered in Evansville, Ind., with branches in Louisville, Ky., Indianapolis, and St. Louis. It is from these locations that Koch Air serves quality-minded Carrier dealers and contractors, distributing to the retail, commercial and industrial markets.