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Important Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size". With the 4" and 5" air filters there is a wider variance depending on the manufacturer. Nordic Pure Honeywell Replacement MERV 12 rated air filters are traditional 5” filter at an actual 4 3/8”. You should always measure your current filter or the housing to make sure the actual size correlates with the filter you are ordering. Nordic Pure pleated air filters are manufactured using a heavy-duty, moisture resistant beverage board frame. There is a metal mesh grid bonded to the pleats for extra support. Our AC filter media prevents the growth of bacteria or mold, resulting in a much healthier living environment. MERV 12 furnace air filters are comparable to HVAC filters with the rating of MPR 1500-1900. This high-performance HVAC replacement filter will help keep your air conditioning and heating systems running efficiently, saving money on utilities and costly maintenance. The effective life of your AC air filter depends on both the inside and outside conditions in which you live. It is important to regularly change your furnace air filters especially during any home improvements for fresh, clean air in your home or office. We recommend that you change your air filter every 3-6 months to maintain maximum efficiency and economy.
From the Manufacturer
Nordic Pure 20x25x5 MERV 12 Honeywell Replacement AC Furnace Air Filters: IMPORTANT NOTE: Almost ALL filters are a fraction of an inch smaller than the nominal size printed on the filter. It is best if you measure your filter for the EXACT size and compare it to our "Actual Size" listed above. With the 4-Inch and 5-Inch filters there are many different exact sizes for the different HVAC manufacturers. Because of this, your filter may say 20x25x4 on it but really be the same as our 20x25x5. This is why we ask you to measure your filter so you aren't surprised if the filter doesn't fit! You may also want to look at our Honeywell replacement 20x25x5 filter. Just check the "Actual Size" before ordering. Nordic Pure air filters are made out of an electro statically-charged synthetic material that draws airborne particulates to it like a magnet. Electrostatic filters help trap airborne particles to protect your family from allergy causing pollen, fine dust, smoke particles, airborne plant spores, bacteria, and some viruses. A MERV 121 Nordic Pure air filter captures airborne particles as small as 0.3 microns! Our air filters do not kill germs, however, the filter media does not permit the growth of bacteria or mold. As a result, it is not necessary to add any potentially irritating chemicals to the air filter to kill germs.
William
2025-08-02 13:23:20
BEST PRICE, GOOD QUALITY, FAST SHIP
David S.
2025-07-28 18:14:44
If you are looking for a replacement / alternative for a 20x20x4 Honeywell Model # FC100A1037, this is it. It is confusing, because you would think you would need the Nordic Pure 20x20x4, but NO, that filter is 3 5/8" thick whereas the Honeywell is 4 3/8" thick. Instead, you need this, the Nordic Pure 20x20x5 - it has the same dimensions: 19 7/8 x 24 7/8 x 4 3/8, as the Honeywell.Even though the product page clearly shows the actual dimensions of this filter, I feel labeling it as a 20 x 25 x 4 is misleading, or at the very least, makes it easy for average homeowners ( vs. HVAC technicians) to end up ordering the wrong product.Also, out of the five times I have ordered Nordic Pure filters, three times, (though not this time) the shipping box, and the filters within, have been significantly damaged. Yes, Amazon / Nordic Pure "made it right," but still, it was a hassle.Those issues aside, these are good filters, offered at a good price, which is why I keep ordering them.The funny thing is, my other air handler's stated filter size is 20x20x4, but for it, the standard Honeywell filter is too thick, and the Nordic Pure fits just right. Go figure...Review of Nordic Pure 20x25x5 MERV 12 Pleated Plus Carbon AC Furnace Air Filters 2 Pack
Consumer
2025-07-07 16:01:20
Filters seem high quality. They are perceptibly larger that the Ultravation filter I was replacing and did not fit the box well (about 1/2 inch too big). If you are looking for replacement box filters, check "actual" sizes and pick one very close to what you are replacing.
R. Jamison
2025-06-22 12:01:40
Came packaged securely, proper size, perfect fit. I plan to use this company going forward.
Bill M
2025-05-28 20:07:58
We had our furnace replaced last year and had a Lennox SLP98V 98% efficiency unit installed because it wasn't much more than the lower efficiency rated units. Wow, what a difference the furnace made in our monthly gas bills, they dropped by quite a bit which will more than make up the difference of saving money by getting a lower efficiency unit.Enough about our furnace, this review is about the Air Filter. I looked up the price on the Lennox X6675 replacement filters and they linger around $100 each which I thought was a bit much. A quick search on Amazon showed these Nordic Pure filters at less than a 1/4 of the cost vs. the Lennox and they had good reviews so I thought I'd give them a try.The first thing I noticed is that the original Lennox is a MERV 16 filter while these Nordic Pure filters are MERV 12. If you're not an HVAC guy, like me, then you would not have a clue what this meant, so a quick internet search showed me the difference between the different MERV ratings and this is what I found:"Filters with a merv rating of 9 to 12 are used in commercial and industrial applications and will stop particles in the 1 to 3 micron range. These filters are a great choice for home owners who want the best dust control possible. When using filters with Merv 9 ratings and above it is important to clean or replace them when recommended by the manufacturer because they will have a negative effect on air flow when they become dirty. This can lead to performance problems and decreased operating efficiency. The most efficient filters have merv ratings of 13 to 16 and will stop particles as small as .3 microns. These filters are used in hospitals and other super clean environments."Okay great, well my home is not a hospital nor a cleanroom environment so I think I'm going to be just fine with a MERV 12 filter :) The next thing I noticed is that not all 20x25x5 filters are the same size (surprise, surprise) and the ones I ordered from Amazon (which is the product I'm reviewing here) are a little bit bigger than the X6675 filter from Lennox. My front filter cover plate did not want to seat all the way until I kind of banged it in. So, if you have a Lennox furnace and you find these filters are a tad big, do a search on Amazon for X6675 and you'll find there is a Lennox version of this filter that is sized appropriately, or click the link here . Yes, they are a little more expensive than these filters, but they will fit correctly, and remember, you're still saving almost $150 over buying two Lennox filters!As to how the filter performs, well I just bought them so I cannot say, but I fully expect them to perform as well as any other 20x25x5 filter. I give these filters 4 stars because they do what they are supposed to do and at a much cheaper price than the alternative "name brand" filters.
Phoenixmike
2025-05-27 13:33:02
Several months back, I had removed the electrical filter system from my HVAC because the continual snapping drove my dogs nuts. I installed a typical garden variety "Best Deal Filters". I first noticed that the box packaging was cheap and it did not protect the filters in shipping, which arrived partially crushed. The filters were so cheaply made they started tearing just by slipping them into their slot.Then I found the 'NORDIC PRUE' in my 25x20x5 size. (Measure the interior dimensions of your HVAC slot as with the rest of the 25x20x5 filters, the actual size of the filter is just under the 25x20x5. These filters were factory boxed in a strong well made box that protected them during shipping and they arrived undamaged. The filter itself was far higher in quality than the cheapo no brand filter I initially installed, which was also about the same price.The filter was far stronger in construction and quality then the junk I initially put in. Plus it's a Merv 12 vs the Merv 8 I removed. Though there was a small space on 2 sides of this filter against my HVAC slot, as to be expected as none of these HVAC slots seem to be the same size, I simply used aluminum tape with the removal film on the back and sealed this slight space. Took all of 3 minutes. I would highly recommend the NORDIC PURE for all your filter needs, a quality product for a fair price, and, it's MADE IN THE USA. 5 Star product.
Alundy
2025-04-05 16:09:34
Been buying these for years. never and issue except when I forget to swap them out :)
Customer
2025-02-18 13:29:29
This size filter is hard to find in stores. Works perfect.
Hepburn
2025-01-17 18:04:27
Good filters but pricey - the size was a bit off from other Merv 11s we had previously, will need to by a skinny filter to double up so they will fit our unit. can't say the carbon makes a noticeable difference. For the increased price I may go back to the original non carbon.
Perry Lenze
2024-12-25 18:03:17
If you notice this merv 8 filter, it is described as 20 x 20 5 then also as 20 x 25 x5. I was looking for 20 x 20 x 5 and got the 20 x 25 x 5 instead. Had to cut it up to make it fit. I was not pleased.
Al C.
2024-12-09 14:43:30
Nordic products are extremely well designed and manufactured....the filters ensure a tight fit in the filter cavity, which minimizes dust and particle leakage from around the filter. The filter media does an extremely effective job of capturing and trapping dust particles so you house remains clean and safe. Carbon lining helps capture and filter noxious smells and odours to keep your home smelling fresh. Yes these filters cost a little more than other brands...but they out perform the competition in every facet of maintaining indoor air quality!For anyone that suffers from seasonal allergies/hayfever....these are a must have!
Felicia Pintilie
2024-12-03 18:38:49
I got my filters, thank you very much.Everything is fine.Felicia
Ron S
2024-11-29 12:20:30
Quick shipping fits correctly, works as advertised, a little expensive
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