Aprilaire Merv 13 media replacement for upgraded* Aprilaire air cleaners

Choose #213 Media for Model 4200 and 2210Choose #413 Media for Model 4400 and 2410 The filter is the heart of the air cleaner and needs to be changed once a year or when your Air Cleaner Control indicates it is time to change the filter (optional) . Use only genuine Aprilaire SelfSeal ™ to ensure the best performance of your air cleaner.  This filter is also used in all upgraded Model 2200 & 2400 & 2120 Air Cleaners. Not for use with the Model 2250.Choose #213 for Model 2200Choose #413 for Model 2400* Requires upgrade kit (not included) can not be used with models 2200 or 2400 with out upgrade kit.  Does not fit the original inner housing