Amazon Basics Window-Mounted Air Conditioner with Mechanical Control – Cools 150 Square Feet, 5000 BTU, AC Unit Price: $172.00 (as of 12/04/2021 02:54 PST- Details)

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Energy efficient air conditioning unit cools rooms up to 150 square feet with standard 9 foot ceilings
Ideal for small spaces such as dorm rooms and RVs