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Inverter Air Conditioners

Inverter units feature special technology to eliminate wasted operation in the air conditioner by controlling the motor speed to exactly the amount of power that is needed to keep the room at the desired temperature. In addition, the inverter technology also makes this unit 27% more energy efficient than standard window units.
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Window Air Conditioners

Keystone window air conditioners are an economical choice for cooling and heating rooms of all sizes.
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Portable Air Conditioners

At Keystone, your family's comfort starts here. With a keystone portable air conditioner, you and your family can relax in cool, blissful comfort.
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Through-The-Wall Air Conditioners

Keystone though-the-wall air conditioners are a great primary source for cooling and heating and can be used to supplement your main heat source in other applications.
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Dehumidifiers

Keystone dehumidifiers helps to remove various amounts of moisture from the air per day. They can be place in various locations throughtout your home or apartment such as the attic, bedroom, or basement.
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Slider/Casement

Designed specifically for horizontal slider or casement windows this unit is the perfect solution for homes without traditional double-hung windows.
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Accessories

Shop from various accessories to supplement your product.
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Keystone

Keystone 26 In. Wall Sleeve for Through-the-Wall Air Conditioners

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Now: $129.99

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