Search  for anything...

Antarctic Star U-Shaped Air Conditioner Window Unit 12000BTU, Ultra Quiet Window Air Conditioner Cools up to 550 Sq. Ft, Saddle Window AC Units with Full Window View, Energy Saving, Easy to install

  • Based on 104 reviews
Condition: New
Checking for the best price...
$419.99 Why this price?
Save $40.00 was $459.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Aug 21
Order within 6 hours and 29 minutes
Available payment plans shown during checkout

Features

  • FULL WINDOW VIEW & ULTRA QUIET: The saddle window ac keeps the noisy compressor outside, reducing noise to just 45dB. Enjoy a peaceful environment whether youre sleeping, reading, or working. This innovative design also offers you full window views and flood your space with natural light. Let's say goodbye to blocked windows and hello to a brighter, quieter home now.
  • RAPID COOLING FOR ULTIMATE COMFORT: The 12000BTU window ac units cool your space rapidly with a temperature range from 62F to 86F. Its perfect for rooms up to 550 sq. ft. such as living room, bedroom, aparment and office. It features 6 modes (Cool, Dry, Fan, Auto, Sleep, and Energy Saver), 3 fan speeds, and 4-way adjustable airflow for tailored comfort.
  • EASY TO INSTALL: Installation is a breeze with all necessary accessories included. No need for a bracket or extra support, and you wont have to worry about the unit slipping. It fits single-hung and double-hung windows with a minimum opening of 16", a window width range of 24" to 48", and a max window sill of 11".
  • 3 IN 1 VERSATILE WINDOW AC: Enjoy year-round comfort with our 3-in-1 window AC. It offers cooling, dehumidifying, and fan modes. In summer, use cool mode to chill your space quickly. On damp days, switch to dry mode to remove excess moisture. In spring or fall, the fan mode provides a gentle breeze and fresh air without cooling.
  • ENERGY SAVING & EASY TO CONTROL: Cut down on energy costs with 3 modes: Timer, Energy Saver, and Sleep mode. Enjoy low running costs, with just $67 in annual energy usage. Control the unit effortlessly with a touch panel or remote, and keep it clean with a washable filter to maintain peak performance and air quality all year long.

Brand: Antarctic Star


Capacity: 30 Liters


Cooling Power: 12000 British Thermal Units


Special Feature: 4 Way Swing, Dehumidifier, Dust Filter, Fast Cooling, Remote Controlled


Product Dimensions: 28.94"D x 18.7"W x 14.96"H


BEE Star Rating: No


Seasonal Energy Efficiency Ratio (SEER): 10.9


Color: White


Voltage: 115 Volts (AC)


Noise Level: 45 dB


Manufacturer: ‎Antarctic Star


Part Number: ‎A5418W-12K-ASVC-NJ


Item Weight: ‎68.2 pounds


Product Dimensions: ‎28.94 x 18.7 x 14.96 inches


Item model number: ‎NCAA-08C/X1E


Size: ‎12000BTU


Color: ‎White


Style: ‎12000BTU


Material: ‎Metal, Plastic


Power Source: ‎Corded Electric


Voltage: ‎115 Volts (AC)


Wattage: ‎690 watts


Installation Method: ‎Window


Item Package Quantity: ‎1


Sound Level: ‎45 dB


Special Features: ‎4 Way Swing, Dehumidifier, Dust Filter, Fast Cooling, Remote Controlled


Included Components: ‎1* Window Air Conditioner; 1*User Manual; 1*Remote Control; Installation Kit


Batteries Required?: ‎No


Warranty Description: ‎1 Year


Capacity: ‎30 Liters


Date First Available: February 14, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Exceeded Our Expectations
This is the perfect air conditioner for our north woods cottage in Wisconsin. It is installed on the 2nd story to allow gravity distribute the air. It is very quiet, you barely know it’s running. This one air conditioner kept our 1100 SQ FT cottage at our desired temperature. We also tested it at 65 degrees on a hot day also. The thermometer was located on the first floor. It was an easy install. We intend to remove it in fall and reinstall in spring. ... show more
Reviewed in the United States on July 7, 2025 by Karte Guy Karte Guy

  • Not very good
down to 1 star because the unit can produce cold air and isn't too loud. Problems with smell and AC controls. Changes temperature by itself for no reason. I put it on 66 so it won't stink, and it changes the temperature on its own to 72 then switches to fan and starts producing a mold smell. Second update: The remote is fairly unresponsive, takes it a few seconds to register command to the unit. Also when I push power on, unit does not remember the last command and resets at 72F. The problem with 72F is it often is on fan only so the bad smell comes in. I manually pushed it to go down in temperature and the physical buttons on the AC did not work, so I had to use the remote to change the temperature down. Update: One problem I'm having is around 72-76F temperature settings the unit smells bad, musky. Since the unit is new and no smells are in my room or outside, I'm assuming it's because of water not evaporated or something like that. I read some units are using more aluminum instead of copper which can allow more bacteria. Either way I'm not sure, but new out of the box the unit at higher temperatures produces bad smells. Pros: This unit is not too loud, I've tried a Midea unit and the Midea is quiet, and this unit is quiet or maybe slightly louder but has a quiet mode that is probably around 40db give or take. I've also tried the standard $150 small window unit and it is very loud so I put it in an area where the volume doesn't matter. Cons: The screws you extend on the outside for support are a bit on the flimsy side relative to the weight of the unit. I'm setting some weight on top of the inside portion in order to balance it out a bit and keep the screws from almost bending from the weight. A picky thing that doesn't really matter: unit does not seem to come with a piece of insulation to shove in the top window crack. Information: So my window only opens to about 13" or so. I have a fold out style window, so I really went nuts and disassembled part of the window in order to get this unit in. So by taking out the bottom glass, and taking out the screens, I was able to get like a 13.5" opening which just barely fit this unit through. So just be aware that if you have a smaller window and might try to fold the U shaped unit through, it can be tricky and you can't get much extra space even utilizing the saddle shape. Might be able to do it from the outside, I'm not sure. I had to just straight shot it through from the inside. ... show more
Reviewed in the United States on April 24, 2025 by just a buyer

  • Dent & Scratch - but running for now
We have it just about a week now. I let it sit upright 24 hours before unboxing and installing with my husband. Two people recommended - easier and quicker. I was slightly disappointed after unpacking to discover a huge dent at the top suface of the Air Conditioner. It was packaged very nicely, couldn't understand how it gotdented unless they shipped it that way. It did not interfere with istallation and it seems to be running very well. There was no time to re-place with a heat wave headed towards the East Coast. We are in the second day of the heatwave and we are very comfortable. Reccomend watching the video's from other people who purchased and installed. We did wind up purchasing extra wide foam weather stripping just for extra coverage around the seams. I would have given it 5 stars if it were not for the dents - I see a lot of people are getting dents in some of the reviews. Any financial retrobution??? They have dent and scratch stores for slightly irregular/damaged appliances. Glad I got the extended warranty. Will update if there are any problems. ... show more
Reviewed in the United States on June 24, 2025 by Deneen Krom Deneen Krom

  • Works well so far.
I have used this AC daily for 3 weeks and I am very pleased with it. The unit arrived several days early. I did need someone to help remove it from the box but decided to do the install solo ( two people would definitely make it easier.) I let it sit upright 24 hours before unboxing and install and if worked great out of the box. Currently using it in a garage and it is a game changer there. The design is a very low profile instead of taking up half of the window. One caution - be sure your window measurements are accurate. The airflow is good but I put a small fan on top to help distribute the air since the room is big. It has multiple settings including a quiet mode and energy saver. The built in dehumidifier is definitely a huge plus in keeping the area comfortable. Only unknown at this point is durability and what the electric bill increase will be. I would buy it again. ... show more
Reviewed in the United States on June 5, 2025 by JBS

  • M
Very disappointed with this product. I was really excited using this new u shaped air conditioner. However, I turned the AC and did not feel that immediate cold air that i experienced with other AC units I have bought in the past. It just felt like ambient air coming out of the unit. I called technical support from the manufacturer. They stepped me through some steps to correct the issue to no avail. I made one last attempt to ensure I was justifying my decision to return. The AC was placed in a three season room where we have a thermostat for the gas fireplace in the room. I closed the door to the room, noted that the gas fireplace thermostat was at 72 degrees. I set the AC unit to 62 degrees. I waited an hour and went back into the room and the temperature was now 73 degrees. The unit is being returned to Amazon on July 11. Note: This is probably my first negative review. As such, I know it’s warranted. ... show more
Reviewed in the United States on July 11, 2025 by R Johansen

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...