Keystone - 450 Sq. Ft. 10,000 BTU Casement Window Air Conditioner - White
Price range: $434.99
💎
Exceptional Value
Outperforms 57% of air_conditioners at a lower price than 68%.
$435 is 15% below the $511 category median.
$435 is 15% below the $511 category median.
Brand: Keystone
Category: Air Conditioner
A Keystone 10,000 BTU Window air conditioner for rooms up to 450 sq. ft. · 3 fan speeds · CEER 10.4.
PQS: 89 (computed 2026-04-28 07:03)
GTIN-14: 00840148724167
Key specs
A human-friendly subset of populated specs
Type
Window
BTU
10,000
Room size
450 sq. ft.
Fan speeds
3
Filter
Mesh
Efficiency
CEER 10.4
Dimensions
20.87" H × 14.57" W × 23.5" D
Energy Star
No
Features
- Remote control
- Fan speeds: 3
- CEER 10.4
Installation notes
- Opening width: 15.5 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 | 6542239 | 434.99 USD | In stock | View offer → | 2026-04-28 02:59 |
Recent price history (50)
Show price log (50 entries)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 434.99 USD | In stock | 2026-04-28 02:59 |
| bestbuy | 434.99 USD | In stock | 2026-04-26 02:59 |
| bestbuy | 434.99 USD | In stock | 2026-04-25 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-04-24 02:48 |
| bestbuy | 434.99 USD | In stock | 2026-04-23 02:51 |
| bestbuy | 434.99 USD | In stock | 2026-04-22 02:52 |
| bestbuy | 434.99 USD | In stock | 2026-04-21 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-04-20 03:00 |
| bestbuy | 434.99 USD | In stock | 2026-04-19 02:52 |
| bestbuy | 434.99 USD | In stock | 2026-04-18 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-04-17 03:00 |
| bestbuy | 434.99 USD | In stock | 2026-04-16 02:56 |
| bestbuy | 434.99 USD | In stock | 2026-04-15 02:57 |
| bestbuy | 434.99 USD | In stock | 2026-04-14 02:48 |
| bestbuy | 434.99 USD | In stock | 2026-04-13 02:51 |
| bestbuy | 434.99 USD | In stock | 2026-04-12 02:59 |
| bestbuy | 434.99 USD | In stock | 2026-04-11 02:57 |
| bestbuy | 434.99 USD | In stock | 2026-04-10 02:54 |
| bestbuy | 434.99 USD | In stock | 2026-04-09 02:58 |
| bestbuy | 434.99 USD | In stock | 2026-04-08 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-04-07 01:42 |
| bestbuy | 434.99 USD | In stock | 2026-04-06 01:30 |
| bestbuy | 434.99 USD | In stock | 2026-04-05 02:58 |
| bestbuy | 434.99 USD | In stock | 2026-04-04 02:57 |
| bestbuy | 434.99 USD | In stock | 2026-04-03 02:54 |
| bestbuy | 434.99 USD | In stock | 2026-04-02 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-04-01 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-03-31 03:06 |
| bestbuy | 434.99 USD | In stock | 2026-03-30 02:52 |
| bestbuy | 434.99 USD | In stock | 2026-03-29 03:03 |
| bestbuy | 434.99 USD | In stock | 2026-03-28 03:01 |
| bestbuy | 434.99 USD | In stock | 2026-03-27 02:57 |
| bestbuy | 434.99 USD | In stock | 2026-03-26 02:52 |
| bestbuy | 434.99 USD | In stock | 2026-03-25 02:54 |
| bestbuy | 434.99 USD | In stock | 2026-03-24 02:59 |
| bestbuy | 434.99 USD | In stock | 2026-03-23 02:53 |
| bestbuy | 434.99 USD | In stock | 2026-03-22 02:56 |
| bestbuy | 434.99 USD | In stock | 2026-03-21 02:56 |
| bestbuy | 434.99 USD | In stock | 2026-03-20 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-03-19 02:57 |
| bestbuy | 434.99 USD | In stock | 2026-03-18 03:05 |
| bestbuy | 434.99 USD | In stock | 2026-03-17 03:08 |
| bestbuy | 434.99 USD | In stock | 2026-03-16 03:05 |
| bestbuy | 434.99 USD | In stock | 2026-03-15 02:55 |
| bestbuy | 434.99 USD | In stock | 2026-03-14 02:58 |
| bestbuy | 434.99 USD | In stock | 2026-03-13 03:08 |
| bestbuy | 434.99 USD | In stock | 2026-03-12 02:59 |
| bestbuy | 434.99 USD | In stock | 2026-03-11 02:57 |
| bestbuy | 434.99 USD | In stock | 2026-03-10 03:06 |
| bestbuy | 434.99 USD | In stock | 2026-03-09 03:06 |
Full specs
Show full spec table
| BTU | 10000 |
|---|---|
| Room size (sq. ft.) | 450 |
| Energy Star | No |
| Type | Window |
| Smart/WiFi | No |
| Fan speeds | 3 |
| Filter | Mesh |
| CEER/EER | 10.4 |
| Dimensions | 20.87 x 14.57 x 23.5 in |
| Reconciled at | 2026-03-06 10:56 |
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Related products
Simple similarity over extracted specs (publish_set only)
Debug data (expand)
| Raw title | Keystone - 450 Sq. Ft. 10,000 BTU Casement Window Air Conditioner - White |
|---|---|
| Raw brand | Keystone |
| Raw category | Best Buy > Appliances > Heating, Cooling & Air Quality > Air Conditioners > Window Air Conditioners |
Canonical highlights (populated fields only)
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|---|---|
| core.seo_title | Keystone KSTSW10B |
| brand | Keystone |
| model | KSTSW10B |
| gtin14 | 00840148724167 |
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| physical.depth_in | 23.5 |
| physical.width_in | 14.57 |
| physical.height_in | 20.87 |
| physical.weight_kg | 33.57 |
| physical.dimensions_in | 20.87 x 14.57 x 23.5 in |
| appliance.btu | 10000 |
| appliance.ceer | 10.4 |
| appliance.type | Window |
| appliance.smart | False |
| appliance.finish | White |
| appliance.fan_speeds | 3 |
| appliance.energy_star | False |
| appliance.filter_type | Mesh |
| appliance.dimensions_hwd | 20.87 x 14.57 x 23.5 in |
| appliance.room_size_sqft | 450 |
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BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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Newegg raw specs
No Newegg raw specs saved for this product yet.