Home Air Conditioners Keystone 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner

Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner - White

Price range: $359.99
💎
Exceptional Value
Outperforms 76% of air_conditioners at a lower price than 70%.
$360 is 20% below the $450 category median.
Brand: Keystone
Category: Air Conditioner
A Keystone 12,000 BTU Window air conditioner for rooms up to 550 sq. ft. · inverter cooling · 3 fan speeds · CEER 15.
PQS: 87 (computed 2026-03-14 07:05:00.920932+00:00)
GTIN-14: 00840148729773
Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner - White

Key specs

A human-friendly subset of specs (non-null)
Type
Window
BTU
12,000
Room size
550 sq. ft.
Inverter
Yes
Fan speeds
3
Efficiency
CEER 15
Dimensions
14.65" H × 21.69" W × 18.98" D
Energy Star
Yes

Features

  • Inverter technology
  • Remote control
  • Fan speeds: 3
  • CEER 15

Installation notes

  • Opening width: 23 inches

How this Air Conditioner compares vs. 198 air conditioners

Percentile rank for each spec — higher means this product outperforms more of its peers.
BTU 12000.0
76% Above avg
Room Coverage 550.0sqft
77% Above avg

Spec Profile Radar

Visual snapshot — outer edge = 100th percentile (best in class)

Offers

Retailer SKU Price Stock Offer Last seen
Best Buy 6610871 359.99 USD In stock View offer → 2026-03-14 04:04:12.020177+00:00

Recent price history (50)

Retailer Price Stock Seen at
bestbuy 359.99 USD In stock 2026-03-14 04:04:12.020177+00:00
bestbuy 359.99 USD In stock 2026-03-13 04:13:54.056452+00:00
bestbuy 359.99 USD In stock 2026-03-12 04:02:46.232109+00:00
bestbuy 359.99 USD In stock 2026-03-11 04:00:43.682952+00:00
bestbuy 359.99 USD In stock 2026-03-10 04:10:10.806332+00:00
bestbuy 359.99 USD In stock 2026-03-09 04:11:15.602413+00:00
bestbuy 359.99 USD In stock 2026-03-06 06:50:48.932955+00:00
bestbuy 359.99 USD In stock 2026-03-03 02:40:31.409885+00:00
bestbuy 359.99 USD In stock 2026-03-02 09:21:08.723594+00:00

Full specs

Show full spec table
BTU12000
Room size (sq. ft.)550
Energy StarYes
TypeWindow
Smart/WiFiNo
Fan speeds3
CEER/EER15
Dimensions14.65 x 21.69 x 18.98 in
Reconciled at2026-03-06 10:56:32.254648+00:00
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Debug data (expand)
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Canonical highlights (non-null)
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appliance.btu 12000
appliance.ceer 15
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appliance.finish White
appliance.fan_speeds 3
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Newegg raw specs
No Newegg raw specs saved for this product yet.