Pay in 4 interest-free payments of $29.01 Learn more
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
19-7/8" x 21-1/2" x 1"
Not a replacement for Honeywell Filters
FXM4X3600A
FEM2X4800A
Protect your HVAC system with Glasfloss GDS 12x30x1 disposable furnace filters
20x25x4 Air Filter by Glasfloss 3. Thickness_4 19-7/8" x 21-1/2" x 1"Product Details Glasfloss Air Filters are an excellent choice for any air conditioning system and are the ones used by the professionals. They are manufactured right here in Florida, by Floridians. Each air filter uses filter media that is made from 100% synthetic material that will not support microbial growth and does not absorb moisture. The media is supported by a galvanized, expanded metal backing that resists rust and corrosion. The filter frame
