Aprilaire Merv 13 Replacement Media for 1210/2210/3210/4200

Fits the Aprilaire Model 4200, Model 3210, Model 2210 and 1210 Air Aprilaire 213 Air Filters are designed for high performance and contaminant-trapping ability. If you added the Upgrade Kit 1213 to your Aprilaire Model 2200 or Model 2120 you can also use the Aprilaire 213 Filters. Features: The Aprilaire 213 Air Filters have a high-efficiency MERV 13 rating Genuine Aprilaire Self-Seal™ #213 ensures the best performance Change Aprilaire 213 filter once a year