The GeneralAire 4017 is the correct replacement cover assembly for the following air cleaner models:
The GeneralAire 12769 Air Cleaner Cover Assembly is a replacement cover assembly for the GeneralAire Model AC1 air cleaner. The 12769 cover assembly holds the MERV 11 air cleaner media withinin the cabinet through the use of the GeneralAire 12738 Thumb Screw. This air purifier cover assembly is a genuine GeneralAire part and is a crucial component of your AC1 air cleaner.
GeneralAire 12769 Air Cleaner Cover Assembly specifications: