Aprilaire 213 (4 Pack) replacement filter media for your Aprilaire 4200 or 2200 high efficiency air cleaner. Rated at MERV 13 based upon 1200 CFM. This filter media needs changed twice per year if you have heating and air conditioning and once per year if you have just heating. Should you have special conditions like lots of shedding pets, are located near a farm or other dusty environment or are a commercial application you will need to replace the filter media more often. The approximate size of this filter media is 20 x 24 x 6.

This new style filter media DOES NOT require the use of pleat spacers but DOES require you to have purchased the 1213 Upgrade Kit in order to install it in a model 2200 air cleaner. If you have the 4200 air cleaner you do NOT need to purchase the Upgrade Kit.