The GeneralAire 4421 is the correct replacement nameplate for the following air cleaner models:
The GeneralAire 13608 Nameplate for AC24 Air Cleaner is a replacement nameplate for the Lennox Model AC24 Air Cleaner. The 13608 nameplate fits into the 13607 cover through the use of the G99-18 filter gauge assembly. This air cleaner nameplate replacement is a genuine GeneralAire part and is made from high quality material in order to be long lasting. Be sure to install this GeneralAire replacement nameplate in the upright orientation. GeneralAire is also known as General Filters.
GeneralAire 13608 Nameplate for AC24 Air Cleaner specifications: