Fits air cleaner models 2200, 2250, 100924
2200i, BestAir Pro SGMPR, RPS. Also fits Lennox PMAC-20C,X0579
HCC10, HCF10, HCXF, York, S1-FM201, GeneralAire 201-12880, 197983b.
The Higher the MERV Rating, the more Efficient
Note: This filter doesn't fit new 2009 upgrade kit.
This product is not manufactured or distributed by Research Products Corporation, owner of the registered trademark Aprilaire®.