FREE shipping in the continental U.S. on orders over $150!

4 Inch

Filter
20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon
On sale from $37.99
View Variants
16x25x4 (3 5/8) Pleated MERV 12 Air Filters
Quickshop Compare

Nordic Pure

16x25x4 (3 5/8) Pleated MERV 12 Air Filters
On sale from $33.99
View Variants
20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon
Quickshop Compare

Nordic Pure

20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon
On sale from $39.99
View Variants
24x24x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon
$65.99 $76.67
Add to Cart
24x24x4 (3 5/8) Pleated MERV 14 Air Filters
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated MERV 14 Air Filters
$53.99 $64.91
Add to Cart
20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter
Quickshop Compare

Nordic Pure

20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters
On sale from $48.99
View Variants
20x24x4 (3 5/8) Pleated MERV 14 Air Filters
Quickshop Compare

Nordic Pure

20x24x4 (3 5/8) Pleated MERV 14 Air Filters
On sale from $48.99
View Variants
20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
On sale from $35.99
View Variants
20x20x4 (3 5/8) Pleated MERV 12 Air Filters
Quickshop Compare

Nordic Pure

20x20x4 (3 5/8) Pleated MERV 12 Air Filters
On sale from $33.49
View Variants
18x24x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters
Quickshop Compare

Nordic Pure

18x24x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters
On sale from $72.99
View Variants
16x25x4 (3 5/8) Pleated MERV 14 Air Filters
Quickshop Compare

Nordic Pure

16x25x4 (3 5/8) Pleated MERV 14 Air Filters
On sale from $46.99
View Variants
16x20x4 (3 5/8) Pleated MERV 14 Air Filters
Quickshop Compare

Nordic Pure

16x20x4 (3 5/8) Pleated MERV 14 Air Filters
On sale from $44.99
View Variants
12x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

12x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon
On sale from $33.99
View Variants
12x24x4 (3 5/8) Pleated MERV 14 Air Filters
Quickshop Compare

Nordic Pure

12x24x4 (3 5/8) Pleated MERV 14 Air Filters
On sale from $41.99
View Variants
28x30x4 (3 5/8) Pleated MERV 8 Air Filters
Quickshop Compare

Nordic Pure

28x30x4 (3 5/8) Pleated MERV 8 Air Filters
$113.47 $125.47
Add to Cart
This website uses cookies to ensure you get the best experience on our website. Learn More