Nordic Pure 20x25x5 (19_3/4 x 24_3/4 x 4_3/8) Lennox X6673_X6675 Replacement MERV 12 Air Filter 2 Pack

Perfect replacement for existing filter! Heavy duty filter to last!

Very well constructed filter. Perfect fit.

I kept forgetting to order the Lennox X6673 filters that had slow shipping time and felt I was overpaying for them at the same time.I heeded the advice of our HVAC pros that going with too high a MERV rating may actually impede airflow and efficiency so to stay near the MERV 11 range whatever we chose.These are great and I actually did notice an improvement in overall airflow and the first summer I used these was particularly bad with fires in the Northwest US region, so smoke and air quality were awful, but these were a great improvement.I've tried the carbon version, as well, out of curiosity but these seem to perform equally well for the money. I've been using them regularly for the last couple years and will continue to do so!

Years ago I got nothing but Nordic pure brand 25x20x5 furnace filters. However, nordic pure doubled their price a few years ago so I just buy whatever is cheaper now, which is not nordic pure. The brand started out with budget pricing and then decided to switch to premium prices? Not sure why bordic pure made the switch but the cheaper furnace filters I now get work equivalent and save me money, which is what we love right! I now get the “Filterbuy 20x25x5 Air Filter MERV 13 Optimal Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1037, Lennox X6673, Carrier, and More (Actual Size: 19.88 x 24.75 x 4.38 Inches)” which works great and is much cheaper!! For me, anything that says Lennox X6673 seems to fit perfectly! I would only buy from nordic pure if you feel like wasting money, which who is that target audience! Thanks🙂

Fit my AC unit well. Hard to find this size and wanted something better than merv10 so opted to get these. Turned out better than expected. Good quality will buy again.

Really great replacement filters. They seem to be just as good as the filter provided by the air handler manufacturer for a hefty discount.They are sturdy and easy to work with/install.Will I buy it again? Absolutely…every 6-12 months.

So glad I found my hard-to-find HVAC air filter! My local filter shop didn't carry it. Big box store didn't carry it, and I certainly wasn't going to buy it from my HVAC company, which I'm sure they mark up.I ordered 2 filters in one box. The filters were not enclosed in any thin plastic bag within the box, so I put the second filter in a clean garbage bag to cut down on dust getting into it.The actual filter size is marked on each filter support box, so I knew it would be a perfect fit.If I ever have another Hvac system installed, I'll make sure the "filter system" they are selling is a filter I can easily find.

I recently purchased an air filter that was supposed to be the same size however it did not fit my ac unit… I have purchased this brand from Amazon and it fits perfect!!

I really wanted a MERV 13 filter, so I ordered these, the stated size is much bigger than the actual size, which is smaller than the listed size, these are very small compared to the size in the listing. Good thing I bought from Amazon for an easy return

I have been using this type off filter since I purchased the new heating system.

Overall, the best and most reasonable filter for my furnace. Choice is really limited given it is 20x25x5 and I don't like that they are so expensive and that they are made in the U.S. (I am Canadian). But they do work well, fit well and I get them to last about 8 months each,

Have purchased the same filters for a few years. The quality of the new ones doesn’t look as good as before

Great furnace filters for the price.