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12,000 BTU Through the Wall Air Conditioner, 2016 EStar

Model # KSTAT121C

Regular Price $549.99

Our Price $499.99

Our Price


Savings $50

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The Keystone 12,000 BTU 115-Volt through-the-wall air conditioner with "Follow Me" remote control is perfect for cooling a room up to 550 sq. ft. It has electronic controls with LED display and a temperature sensing LCD remote control allowing you to conveniently see, set and maintain the room temperature from across the room. Money saving features includes energy saver mode, sleep mode and a programmable 24-hour timer. Plus quiet operation (56.5 dB on low) helps you get a good night's sleep. This unit is designed for through-the-wall installation and is not designed for standard window installation (WALL SLEEVE SOLD SEPARATELY).

  • 2016 ENERGY STAR: 10.5 Energy Efficiency Ratio (EER)

  • 12,000 BTU air conditioner for through-the-wall installation (Not suitable for window installation)

  • Uses standard 115-Volt electrical outlet

  • Cools a room up to 550 sq. ft. with dehumidification up to 2.5 pt. per hour

  • Electronic controls with LED display allows you to easily select options with the touch of a button

  • Temperature sensing LCD remote control allows you control the temperature from across the room

  • Auto-restart saves your settings for when power is restored to the unit

  • Adjustable 4-way air flow direction allows you to easily control the direction of the cool air

  • Quiet operation for a good night's sleep (56.5 dB on low)

  • 3 cooling speeds, 3 fan speeds, plus Auto Cool for cooling flexibility

  • Programmable 24-hour on/off timer cools on your schedule

  • Energy-saver mode conserves energy and saves you money

  • Sleep mode gradually increases room temperature after being activated

  • Easy-clean, slide-out mesh filter with check filter alert on the unit

  • Extra-long 7 ft. 3-prong power cord makes extension cords unnecessary

  • U.L. safety listing

  • Wall sleeve sold separately - KSTSLV1


Cut-Out Front to Back Width (in.)


Cut-Out Height (in.)


Cut-Out Left to Right Length (in.)


Product Depth (in.)


Product Height (in.)


Product Width (in.)



A/C Cooling Rate (BTU/hr)


A/C Coverage Area (sq. ft.)


Air Conditioner Product Type

Through the Wall Unit

Air direction/circulation


Amperage (amps)


Automatic shutoff


BTU Cooling Rating




Color Family




Decibel (Sound) Rating

60 dBA

Decibel Rating

60 dBA

Decibel Rating (Indoor)

Not Measured

Decibel Rating (Outdoor)

Not Measured

Energy Efficiency Ratio (EER)


Filter Type


Filter light reminder


Heater included


Number of Fan Speeds


Number of cool settings


Product Weight (lb.)


Remote Control


Self-diagnostic tools


Sleep setting


Sleeve Included




Voltage (volts)


Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy, and expensive and you probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Questions or Comments?
Call 1-800-262-0106 for assistance. Click Here for hhgregg location and contact information.

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