Home Air Conditioners Keystone 450 Sq. Ft. 10,000 BTU Casement Window Air Conditioner

Keystone - 450 Sq. Ft. 10,000 BTU Casement Window Air Conditioner - White

Price range: $434.99
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: 87 (computed 2026-03-14 07:05:00.920932+00:00)
GTIN-14: 00840148724167
Keystone - 450 Sq. Ft. 10,000 BTU Casement Window Air Conditioner - White

Key specs

A human-friendly subset of specs (non-null)
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.
BTU 10000.0
56%
Room Coverage 450.0sqft
58%

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 → 2026-03-14 02:58:37.770316+00:00

Recent price history (50)

Retailer Price Stock Seen at
bestbuy 434.99 USD In stock 2026-03-14 02:58:37.770316+00:00
bestbuy 434.99 USD In stock 2026-03-13 03:08:09.184825+00:00
bestbuy 434.99 USD In stock 2026-03-12 02:59:04.799682+00:00
bestbuy 434.99 USD In stock 2026-03-11 02:57:16.072421+00:00
bestbuy 434.99 USD In stock 2026-03-10 03:06:28.858095+00:00
bestbuy 434.99 USD In stock 2026-03-09 03:06:20.961465+00:00
bestbuy 434.99 USD In stock 2026-03-06 06:17:02.962188+00:00
bestbuy 434.99 USD In stock 2026-03-03 02:07:15.206101+00:00
bestbuy 434.99 USD In stock 2026-03-02 08:17:45.319091+00:00

Full specs

Show full spec table
BTU10000
Room size (sq. ft.)450
Energy StarNo
TypeWindow
Smart/WiFiNo
Fan speeds3
FilterMesh
CEER/EER10.4
Dimensions20.87 x 14.57 x 23.5 in
Reconciled at2026-03-06 10:56:32.254648+00:00
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Raw brandKeystone
Raw categoryBest Buy > Appliances > Heating, Cooling & Air Quality > Air Conditioners > Window Air Conditioners
Canonical highlights (non-null)
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core.seo_title Keystone KSTSW10B
brand Keystone
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physical.depth_in 23.5
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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
schema_version 1
BestBuy raw specs (pretty)
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Newegg raw specs
No Newegg raw specs saved for this product yet.