FREE shipping in the continental U.S. on orders over $100!

4 Inch

Filter
16x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

16x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
On sale from $34.78
View Variants
16x20x4 (3 5/8) Pleated MERV 10 Air Filters
Quickshop Compare

Nordic Pure

16x20x4 (3 5/8) Pleated MERV 10 Air Filters
On sale from $30.37
View Variants
12x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

12x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
On sale from $35.27
View Variants
12x24x4 (3 5/8) Pleated MERV 10 Air Filters
Quickshop Compare

Nordic Pure

12x24x4 (3 5/8) Pleated MERV 10 Air Filters
On sale from $30.37
View Variants
This website uses cookies to ensure you get the best experience on our website. Learn More