Filterbuy 20x25x5 Air Filter MERV 13 Optimal Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1037, Lennox X6673, Carrier, & More (Actual Size: 19.88 x 24.75 x 4.38 Inches)

Replacement units for use after some internal repairs in our home that created significant dust which required early replacement

Used these for many years then recently upgraded to higher level to remove pet dander as well when we added our cat.

These fit for me and I change every 6 months. Easy to have them delivered.

It appears to be a MERV 13 in terms of filtration depth. However, the build quality is closer to many of the MERV 11 filters I see. Usually, MERV 13 have wire mesh reinforced baffles to keep them separated when the air flow wants to push them or fold them together. These filters don't have that wire mesh. For the price, these are great, but they aren't exactly up to the same quality you might find in the store (granted that's at 50% to 100% more in cost).

This was a quick, easy transaction. Perfect!

Good

I could pay my HVAC company nearly twice as much to change my furnace filter or I could buy them from Amazon for almost half the price. These really filter out dust, dirt, fur and more.

These are an exact fit for our Lennox unit, and they work very well. We change these out twice a year and have had no issues. Price is reasonable.