Portable AC Window Vent Kit, Heavy Duty Heat-Insulating Air Conditioner Window S
Portable AC Window Vent Kit, Heavy Duty Heat-Insulating Air Conditioner Window Seal Kit, Cut-To-Length Full Sealing AC Unit Windows Kit – 10″ W X 38–62″ L. This kit effectively reduces cool air loss and blocks hot air from sneaking back in, helping you save energy and lower your electricity bills.