Glasfloss ZL 20x20x4 MERV 10 Air Cleaner Filter replacements for Honeywell F-100 Air Filters. 2 Pack. Exact Size: 20 x 19-7/8 x 4-3/8

Nominal Size: 20 x 20 x 4.38 Exact Size: 20 x 19-7/8 x 4-3/8 MERV 10 Air Cleaner Filter replacements for Honeywell F-100 Air Filters. Blocks and Captures: Dust, pollen, mold spores, pet dander, smog, dust mites, debris.