Universal Foldable Wall Sleeve for Standard Size PTAC, 42″ x 16″ Packaged Terminal Air Conditioners and Packaged Terminal Air Conditoner Heat Pumps (PTAC and PTHP) are all-in-one heating and cooling units that are easy to install and use, but they do require a wall sleeve and a grille. The wall sleeve is used for PTAC thru-the wall air conditioners, also sometimes called hotel-type air conditioners or wall air conditioners. Industry standard wall sleeve fits all PTACs and PTHPs Quick replacement
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