LG THROUGH-THE-WALL AIR CONDITIONERS Wall Sleeve with Stamped Aluminum Grille Wall sleeve allows easy installation of through-the-wall air conditioners. Can be used with LG and other brands including Friedrich, GE, Amana, Whirlpool Fedders and Frigidaire. Gold Fin anti-corrosion resistant finish protects unit from outside air. Protective stamped aluminum grille on exterior surface for safety. 16.75 L. 25.88 W. 15.50 H.