Thru-the-Wall Air Conditioner with Electric Heater 12,000 BTU estimateend-4 Can I seal the sleeve

Can I seal the sleeve when the AC unit is removed

30 In x 54 In 28 In x 51

Please Note: This product needs a Mini-Split Quick Connect 12

900lb maximum average arresting force

Lightweight (11 lbs per 4'x8' panel)

Thru-the-Wall Air Conditioner with Electric Heater 12,000 BTU estimateend-4 Can I seal the sleeve12,000 BTU Thru the Wall Air Conditioner with Electric Heater This versatile thru the wall air conditioner goes with the flow of the weather, so you stay comfortable in any season. With a 12,000 BTU capacity, this Perfect Aire unit is engineered with an electric heater to warm or cool spaces up to 550 square feet. Find your comfort zone with adjustable temperature settings, full range air direction control, and three fan speeds. Heading to the kitchen