Lennox X7935 Carbon Clean Healthy Climate MERV 16 Filter (2 Pack) Use in Lennox Healthy Climate HCC14-16 Air Cleaner MERV 16 Efficiency to capture particles as small as 0.1 microns Actual Size: 19-3/4" x 19-7/8" x 4-3/8" Lasts up to 1 Year in Many Home Environments Genuine Lennox OEM Filter