21 1/2" x 21 1/2" x 4" MERV 13 - Pleated Air Filter
21 1/2x21 1/2x4 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

21 1/2x21 1/2x4 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

2517 reviews

save $40.27
Regular price
$201.32
Sale price
$161.05
Unit price
per 



Protects from Dust, Lint, Pollen, Mites, Mold, Pet Dander, Viral Infections, Bacteria, and other allergens.

This is currently the highest rated filter!

Shipping calculated at checkout.

Join Waitlist
  • Free Shipping
  • Made in USA

21 1/2" x 21 1/2" x 4" MERV 13 - Ultimate Allergen Reducing Furnace & AC Air Filter Replacements - 6 Pack

Actual Dimensions: 21 1/2" x 21 1/2" x 3 3/4"

21 1/2" x 21 1/2" x 4" MERV 13 - Ultimate Allergen Reducing Furnace & AC Air Filter Replacements - 6 Pack

Actual Dimensions: 21 1/2" x 21 1/2" x 3 3/4"

Customer Reviews
4.9 Based on 2517 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
MI
08/14/2020
Martha I.
United States United States
I recommend this product
6x24x1 filters.

The filters are working great. So glad I found them and they were delivered so fast.

JK
08/12/2020
Jennifer K.
United States United States
I recommend this product
14x23x1 6PK AC Air Filters

Fast Delivery! Great Product! Reasonable Price! I would recommend this product to anyone looking for replacement air filters.

WR
08/11/2020
Walter R.
United States United States
I recommend this product
New filters

very good I will use you for future orders Thanks

PB
08/04/2020
Peter B.
United States United States
I recommend this product
Great company

Great company to deal with. The filters were special order size and were delivered in great time.

GS
07/30/2020
Gordon S.
United States United States
I recommend this product
Filter Review

The filters look and work great , glad to find you guys made custom filters at a good price. Thanks so much for the great service. Gordon Swayne



×