
If you are looking for a replacement/alternative for Honeywell #FC100A1037 this is NOT what you are looking for . This filter is 3 5/8 inches thick while the Honeywell filter is 4 3/8 inches thick. Instead, you'll want the Nordic Pure 20x20x5 - it's the same dimensions: 19 7/8 x 24 7/8 x 4 3/8 as Honeywell. The 20 x 25 x 4 labeling is misleading or at least allows regular homeowners (as opposed to HVAC technicians) to end up ordering the wrong product. Also, out of the four orders I've ordered the Nordic Pure, twice the shipping box and the filters it contained were severely damaged. Yes, Revain/Nordic Pure "got it right" but it was still a hassle. Those issues aside, these are good filters that come at a good price, which is why I keep ordering them. The advertised Air-Handler filter size is 20 x 20 x 4, but the standard Honeywell filter is too thick for this, and the Nordic Pure fits just right. Find out. Review Carbon filter Nordic Pure 20x25x4 MERV 12 Pleated Plus for AC ovens, 2 packs

π·οΈ Nordic Pure 20X25X5 Pleated Replacement Filter
10 Review

π¬οΈ Nordic Pure 16x20x1 Pleated Air Filter 16x20x1M12 6 Pack - High Performance Filtration Solution
10 Review

Nordic Pure Honeywell FC100A1037 Replacement
10 Review

π¨ Filtrete FAPF024: The Ultimate Air Cleaning Filter for a Healthier Home
12 Review

NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
23 Review

NANPU 1 FRL Air Filter Regulator Lubricator Combo With 0-150 Psi Gauge, 5 Micron Brass Element, Poly Bowl & Semi-Auto Drain - Metal Bracket Included
20 Review

Filter under the sink Aquaphor Favorit ECO silver
20 Review

NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review