No Drilling Air Conditioner Support Bracket,Fits Single & Double-Hung Windows, Heavy Duty Steel Holds up to 300Lbs, for 5000-24000 BTU Units. 【 Bracket For AC Window Unit】 – Easily expands from 31.5”to 41.7", fit most single or double hung windows; adapts to exterior wall thickness of 2”to 15.2”;fit for 5000-24000 BTU Units.
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