Trion Air Bear 20x25x5 Air Filter, MERV 13 Furnace AC Air Filter Replacement, for Air Purifier Systems, Actual Size (4.94 x 24.25 x 19.75 in), 3 Pack

I use these regularly. This is the second set I’ve purchased. Come quickly and in good condition.

These are original equipment filters. They filter large debris but pass finer dust particles.

This MERV 13 20-25-5 air filter effectively cleans the air in our home of particulates for four months before we exchange it for a new one.

This is my second attempt to purchase these air filters. This time I ordered the correct size filter. The size was correct and fit perfectly.

Note that if you have a Lennox HVAC or ANY unit that has the metal guardrails to guide filter and hold it in place (I'm pointing to them in the photo), this will not work, its too wide. In other reviews it says it didn't fit, so Im sharing why. The foam at top and bottom sounded great from other reviews but this filter will ONLY work if your unit has no metal "guide" rails that the filter has to fit between. I measured it is 5 wide, so it is not wrong size, it's the metal rails my hvac has.if you look at the photo of my existing filter in the unit, you'll see that its 1/8 inch narrower on each side than this new one that you can see it's too wide and wider than the one inside the unit that is between the metal.guiderails.The last photo is of my current filter that is just barely shy of 5 inches so that it can fit between the metal guides. Note that merv13 is usually industrial or hospital not residential that may be why.

Recently moved into our home, and bought these as a replacement for our central system. Work amazing, and fit like a glove!

We have been purchasing these quality furnace filters from AMAZON for many years.The size we purchase is 20 x 25 x 5, MERV 13.We change the filters usually 2 times per heating season, sometimes 3 times.They have foam strips both on top and bottom which results in a good snug fit; thus no air "slips" above or beneath the filter.They seem to really filter very small particles from the air.If you have asthma and a forced hot air furnace, this is one of the best filters you can find and its available in very many sizes.We buy three to save cost and always purchase the MERV 13.

One of the 3 air filters that arrived is already in use. There are some other businesses out there who sell "Air Bear" replacements that aren't MERV 13, so be careful if you're shopping elsewhere.