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

Katherine Cortopassi 1 day ago
5
We have been using these filters since we got anew furnace and we are satisfied with them.
John S. Harding 1 day ago
5
The filters shipped just a few days after I ordered them.
John Jordan 1 day ago
5
This is one of the top 5 companies I’ve dealt with over the years! Easy ordering, delivered on time, great value…what could be better. The even covered me for a mistake I made one time.
Bruce Schermen 1 day ago
5
Good filter, works well.