Lennox X6670 MERV 11 Box Replacement Filter also for Honeywell, 16" H x 25" L x 5" W Genuine Lennox replacement filter Replaces Honeywell fc35a1001, fc100a1029, fc200e1029 Merv 11 filter Replaces expxxfil0016, expxxunv0016, expxxlmc0016, filcccar0016, filbbcar0016 Replaces x6670 for Lennox model hcf16-10, hcc16-28