Frigidaire EA108T 18 In. Sleeve Kit for Through-the-Wall Air Conditioners
The Frigidaire EA108T 18 In. Sleeve Kit for Through-the-Wall Air Conditioners is compatible with all FAH series models from 8,000 to 14,000 BTU.  It includes adjustable mounting brackets, lock clip, and inner sleeve seal.  Use in finished walls up to 17.75 inches thick.