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

4 Inch

Filter
28x30x4 (3 5/8) Pleated MERV 13 Air Filters
Quickshop Compare

Nordic Pure

28x30x4 (3 5/8) Pleated MERV 13 Air Filters
$203.47 $215.47
Add to Cart
28x30x4 (3 5/8) Pleated MERV 12 Air Filters
Quickshop Compare

Nordic Pure

28x30x4 (3 5/8) Pleated MERV 12 Air Filters
$113.88 $125.88
Add to Cart
28x30x4 (3 5/8) Pleated MERV 10 Air Filters
Quickshop Compare

Nordic Pure

28x30x4 (3 5/8) Pleated MERV 10 Air Filters
$111.38 $123.38
Add to Cart
24x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon
$43.99 $55.11
Add to Cart
24x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon
$44.99 $56.09
Add to Cart
24x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon
$44.49 $55.60
Add to Cart
24x24x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter
$52.99 $63.93
Add to Cart
24x24x4 (3 5/8) Pleated MERV 8 Air Filters
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated MERV 8 Air Filters
$39.99 $51.19
Add to Cart
24x24x4 (3 5/8) Pleated MERV 7 Air Filters
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated MERV 7 Air Filters
$39.49 $50.70
Add to Cart
24x24x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon
$41.99 $53.15
Add to Cart
24x24x4 (3 5/8) Pleated MERV 15 Air Filters
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated MERV 15 Air Filters
$57.00 $67.86
Add to Cart
24x24x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon
$60.99 $71.77
Add to Cart
24x24x4 (3 5/8) Pleated MERV 13 Air Filters
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated MERV 13 Air Filters
$42.99 $54.13
Add to Cart
24x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon
$46.99 $58.05
Add to Cart
24x24x4 (3 5/8) Pleated MERV 12 Air Filters
Quickshop Compare

Nordic Pure

24x24x4 (3 5/8) Pleated MERV 12 Air Filters
$40.99 $52.17
Add to Cart
This website uses cookies to ensure you get the best experience on our website. Learn More