20x25x4 Standard Filters

NOTE: Please compare the actual size of your current filter with the actual sizes listed on our site. A nominal 20" x 25" x 4" filter can be different actual sizes depending on the brand of your air cleaner.
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What Our Customers Have to Say

REBECCA DAGG 1 day ago
5
Love these convenient filters!
John Kitzman 1 day ago
5
These filters are wonderful. They are LONG LASTING Z( I change mine every 6 months ) I will continue to buy these filters from Discount Filters. Thank You for such a good product.
Terry Pierce 1 day ago
5
What I need for a good price!
LEE 1 day ago
5
On the job & doing well.