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.
$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
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.
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
| BTU | 12000 |
|---|---|
| Room size (sq. ft.) | 550 |
| Energy Star | Yes |
| Type | Window |
| Smart/WiFi | No |
| Fan speeds | 3 |
| CEER/EER | 15 |
| Dimensions | 14.65 x 21.69 x 18.98 in |
| Reconciled at | 2026-03-06 10:56:32.254648+00:00 |
Canonical JSON (expand)
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Simple similarity over extracted specs (publish_set only)
Debug data (expand)
| Raw title | Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner - White |
|---|---|
| Raw brand | Keystone |
| Raw category | Best Buy > Appliances > Heating, Cooling & Air Quality > Air Conditioners > Window Air Conditioners |
Canonical highlights (non-null)
| core.title | Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner - White |
|---|---|
| core.seo_title | Keystone KSTAW121WA |
| brand | Keystone |
| model | KSTAW121WA |
| gtin14 | 00840148729773 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/c4249e70-cc5a-4a30-b35e-cca874ecdf7f.jpg |
| category | air_conditioner |
| physical.depth_in | 18.98 |
| physical.width_in | 21.69 |
| physical.height_in | 14.65 |
| physical.weight_kg | 23.1 |
| physical.dimensions_in | 14.65 x 21.69 x 18.98 in |
| warranty.labor | 1 year limited |
| warranty.parts | 1 year limited |
| appliance.btu | 12000 |
| appliance.ceer | 15 |
| appliance.type | Window |
| appliance.smart | False |
| appliance.finish | White |
| appliance.fan_speeds | 3 |
| appliance.energy_star | True |
| appliance.dimensions_hwd | 14.65 x 21.69 x 18.98 in |
| appliance.room_size_sqft | 550 |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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Newegg raw specs
No Newegg raw specs saved for this product yet.