800-849-1112

Explore Products

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.

Learn More

Window Air Conditioners

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

Learn More

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.

Learn More

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.

Learn More

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.

Learn More

Slider/Casement

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

Learn More

Accessories

Explore from various accessories to supplement your product.

Learn More
Where to Buy
Register Your Product
About
FAQs
Contact Us

Register Your Product

Register your product so we can activate warranties, send product updates, recommendations, help troubleshoot issues, offer maintenance advice, and communicate any product recalls or safety warnings in the event of one