
Whirlpool
A through-the-wall air conditioner rated at 8,000 BTU for rooms up to 350 sq ft. It installs in a wall sleeve.
$490
List priceNo live retailer for this exact model right now.
Last listed at Sylvane for $489.99 on Jul 28, 2026. We have not been able to confirm it since.
The closest through-the-wall unit you can buy today:
Frigidaire 8,000 BTU Through-the-Wall Air Conditioner with Heat 115VWhirlpool's manual gives its standard sleeve as 26 inches wide, 15¾ high and 16¾ deep, and asks you to check that another maker's sleeve suits the unit before installing. A universal interior trim kit for an existing standard sleeve comes with it; new sleeves are sold separately. Source: Whirlpool installation manual
Every through-the-wall AC and PTAC by the sleeve it fitsThis is a through-the-wall air conditioner. It sits in a sleeve built into an exterior wall, so the window-unit mounting and bracket rules do not apply to it. Swapping it into an existing sleeve is a like-for-like replacement; cutting a new opening changes the building's exterior wall, which usually needs a building permit and, in a condo, co-op or historic building, approval first.
Slides into a wall sleeve
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The questions buyers ask, answered from live prices and real specs. See where a through-the-wall unit like this fits.
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Will it cool your room?
This has more cooling than your 150 sq ft room needs. It can short-cycle and leave the air cool but humid.
At a glance
Best for replacing a through-the-wall unit in an existing wall sleeve.
$409
Slides into a wall sleeve