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

Eddie Hyde 1 day ago
5
I’ve been using this product for years. Great filters. Great customer service
Ann Mentis 1 day ago
5
very quick delivery
George Kachmarik 1 day ago
5
Maintence item! High quality furnace filters assist in keeping the air in your home clean. These filters perform great, no issues with to report. Fit and function flawlessly. Will purchase again.
Richard V Davis 1 day ago
5
I like the MERV 11 filters. They allow more air to flow through and that does not put a strain on my HVAC system's blower. I have started to change my filters out every month to keep the dust down in the house.