20x20x4 3M Filtrete Allergen Reduction filter

This 3M 20"x20"x4" Filtrete High Performance 4" filter also known as 3M 20x20x4 - 3M DP02DC filters ..

$34.00

Honeywell FC100A-1011 MERV 11 Box Media 20x20x4-3/8 Red

Honeywell Replacement Media Model FC100A1011, Model FC100A-1011, and Model HWFC100A-1011 20x20 Genui..

$35.00

Honeywell FC200E-1011 MERV 13 Box Media 20x20x4-3/8 Black

Honeywell FC200E-1011 FC200E1011 FC200E 1011 MERV 13 20x20x4 3/8 replacement media is their higher e..

$43.50

Purolator MERV 8 Pleated Air Filter - 4 inch

Purolator’s innovative Key Pleat® standard and high capacity filters are the best-performing self-su..

$30.50