Window AC Support Bracket, No-Drill No-Tool Air Conditioner Support Bracket Adjustable Wall Mount, Heavy Duty Steel Holds Up to 300lbs, Fits Single Or Double Hung Windows, White. Window AC Support Bracket, No-Drill No-Tool Air Conditioner Support Bracket Stand Holder Adjustable Wall Mount, Heavy Duty Steel Holds Up to 300lbs, Fits Single Or Double Hung Windows, White.