20x20x5 (20x19.75x4.38) Lennox OEM MERV 16 HCF14-16 High Capacity Relacement Filter Lennox Part X7935 Genuine OEM Lennox MERV 16 filter The Carbon Clean 16 combined industry-leading MERV 16 filtration with an odor-removing&#44; coconut-activated Replacement for Lennox X7935 &#40;HCF14-16&#41;&#44; X0585 &#40;HCF14-10&#41; for use in HCC14-23 Air Provides near-perfect filtration performance. Interchangeable with Honeywell Filter FC100A1011&#44; 203721&#44; FC35A1019.