
OXBOX | LG | CHAMPION | STERLING | SUSTAINABLE COILS
From residential to commercial to new construction - we’ve got the equipment to match any job. Central Oklahoma Winair carries dependable, high-performance HVAC systems from trusted brands like Oxbox, LG, Champion, Sterling, and Sustainable Coils. Whether you're replacing a unit or outfitting an entire building, our team is here to help you find the right solution - quickly, accurately, and backed by real-world expertise. Need an RTU? No problem. We’ll get you what you need, when you need it.
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OXBOX - A TRANE BRAND
Endorsed by Trane, America's Most Trusted HVAC Brand. Currently Offering 410A & 454B Units. Quality, Affordable residental heating and cooling solutions.
10 YEARS | 10 PARTS | 1 YEAR
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LG Duct-Free
LG Offers Duct-Free Split Systems That Delivers Reliable Comfort with Inverter Technology for Enhanced Energy Efficiency. Smart Features Including ThinQ compatibility.
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Champion RTU's
JCI Champion offers Commercial Rooftop Packaged Units Offer Simplified Installation and Energy-Efficient Operations.
Available in 3 Ton - 27.5 Ton Capacity Range.
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STERLING HEATERS
Efficient, all-in-one unit heaters built for both residential and commercial applications. Available in natural gas or propane. Sterling heaters are quiet, thermostat-controlled, and easy to install, making them a reliable choice for garages, workshops, warehouses, and more. Rugged performance meets simple operation.
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SUSTAINABLE COILS
USA-Made Replacement Evaporator Coils for Residential and Commercial Systems. Compatible with Carrier, ICP, Trane, American Standard, Goodman, and more. Durable Aluminum End Plates all with a 5-Year Warranty.

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