The GeneralAire 4107 is the correct replacement carrier end for the following air cleaner models:
The GeneralAire 12909 Carrier End for Model AC3 is a replacement carrier end for the GeneralAire Model AC3 Air Cleaner. The 4107 fits onto the end of the 12914 side frame absorber, and attaches to the 12911 carrier end seal and 12912 carrier end lid. This is a genuine GeneralAire replacement part and is made from durable construction material.
GeneralAire 12909 Carrier End for Model AC3 specifications: