The Frost King Air Conditioner Support Bracket, model number ACB80H, is a must-have item when installing a window air conditioning unit. The Frost King Air Conditioner Bracket safely supports up to 80 lbs. This universal air conditioner window bracket is secure and durable. A properly installed air conditioner window bracket will relieve the stress that an air conditioner places on your window. Light Duty, Steel Universal Air Conditioner Support, Installs Completely From Inside, Supports Up To 80 LB Or 5,000 To 10,000 BTU's.