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These are two self-sticking foam panels that replace the flimsy plastic side accordions on a window air conditioner. Each panel measures 9 by 18 inches and about 7/8 inch thick, and you cut them to fit. The point is to seal the gaps beside the unit, which cuts drafts and outside noise and keeps warm air out. They suit anyone with an older or loose-fitting window unit; buyers with a tight, well-sealed install may not notice much difference.
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Lowest price we've seen: $12.99 on Nov 10 at Amazon. Tracked across 2 stores since Nov 10.
Owners rate these panels well overall and mostly praise the seal and the noise reduction compared with the plastic panels that came with their units. Complaints center on the adhesive and on trimming.
Replace the plastic side covers of your air conditioner with Thermwell Products Co. Inc. 9 in. x 18 in. Foam Insulating Side Panels for Air Conditioners (2-Pack). These self-sticking side channels fit most window units, feature thick noise- and vibration-reducing foam and are easy to cut, fit and install.
