Air filter
Replaces 5304476436
Filters clog with use. The manual lists how often to change it.
1Air filter5304528926Part numbers come from the Sears PartsDirect parts list for the Frigidaire FFTA1233S21 (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Where the model number is
On the side or back of the unit; window units also behind the front grille.