Product details:

Air conditioner wall sleeves slide into a cutout to hold wall-mounted air conditioners. They provide a stable platform for AC units and help form a seal around the units to insulate against energy loss and block out rain.Wall air conditioner accessories protect wall-mounted AC units from damage, aid their installation, and provide control of their operation. They're used for applications such as mounting the air conditioners, covering units that aren't in use, managing condensate and runoff, and programming temperature setpoints.