Filterbuy 20x25x4 Air Filter MERV 13 Optimal Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 24.50 x 3.63 Inches)

These filters fit, have a very good filtration rating, and a decent price. If these last as long as my first set, I have three years of filters.

Right Fit Great Price for 6 pack

Fits my furnace. Great great price.

These are not actually 4” so be careful. They sit loosely in my filter location. I am guessing that they will function okay since they still MERV 13. I’ll probably go back to Filtrete brand in the future. Sometimes you get what you pay for on Amazon.

Purchased for future us. They appear perfect as replacements and by far the most reasonable price.

I'm a home builder and been using these filters for years.

Made in the USA. Fits perfectly. Is working great. Great value for the money. Supporting an American company and American workers!!!

I paid $64.75 to return six of these filters via USPS to the vendor. If you are purchasing MERV13 to capture coronavirus, and assuming they operate at filtering 98% of particulates, these filters look highly doubtful they will do the trick. We could not believe the difference in the number of pleats, the thickness of the pleats and the even distribution of the pleats on the Honeywell filters we've been using and these clearly inferior filters.Nothing was bashed in on the box and you can see in pictures the criss-cross cardboard on top is intact. Look at the distribution of the pleats! We took the plastic wrap off one to see if we could gently even the pleats out. Not possible. That's when we compared these filters to the Honeywell filter in our A/C. The Honeywell has many more tightly placed pleats, the material is so much thicker, and no ridiculous bunching like these. You get what you pay for.Filterbuy says these are MPR 1500- MPR 1900. Which is it? MPR1500 is a MERV12 and MPR 1900 is a MERV 13. Do not waste your time or money on these ridiculous filters. You are not protecting your family much if you do.By the way, this Christmas we unwittingly had someone with coronavirus in our house for two days. We ate together, etc. No masks. None of us had had coronavirus before and none of us got coronavirus. We didn't have our windows open, just our Honeywell MERV13's that our A/C guy recommended. I still cannot believe none of us got the virus. Upgrading your ventilation to proper Merv13's works!