Filtrete High Performance Air Filter, 1900 MPR, UA21-4, 18 in x 24 in x 1 in (45,7 cm x 60,9 cm x 2,5 cm)
Filtrete High Performance Air Filter, 1900 MPR, UA21-4, 18 in x 24 in x 1 in (45,7 cm x 60,9 cm x 2,5 cm)
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Filtrete High Performance Air Filter, 1900 MPR, UA21-4, 18 in x 24 in x 1 in (45,7 cm x 60,9 cm x 2,5 cm)

4.8 stars out of 639 reviews
(4.8)|
639 ratings

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Filtrete High Performance Air Filter, 1900 MPR, UA21-4, 18 in x 24 in x 1 in (45,7 cm x 60,9 cm x 2,5 cm)
Current price is $107.95
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Columbus, 43215
Arrives by Fri, Apr 10
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Sold and shipped by The Factory Depot
4.2678690714762855 stars out of 5, based on 1497 seller reviews(4.3)
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4.8 out of 5 stars
stars639 ratings596 reviews
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Showing 1-3 of 596 reviews

Jul 11, 2025
HOTB
5 out of 5 stars review

I'm pleasantly pleased

I've used this particular filter since before I replaced my heat pump more than 18 years ago. And I must say that I'm fully satisfied with this product. I'm a retired HVAC/r technician What got me turned on to this product was when I was working with the local government more than 25 years ago when this was not available to the local public. Now I Will admit there's been times that I've gone more than 3 months whereas I would clean (brush off the dander and whatnot) to the life of the filter. Still, this filter preformed like a champ. I do my by-yearly inspection and for all this time my air handler doesn't show its age.

Review from filtrete.com
Helpful?6QO3L98VHJ9E3726835239
Jan 9, 2019
JW72
5 out of 5 stars review

Excellent Filtration Filter

[This review was collected as part of a promotion.] I've been buying these performance filters for the past 10 years because they trap & remove allergens and dust particles from our house indoor air. My wife has asthma and these filters remove dust articles that can affect her breathing functions.

Review from filtrete.com
Helpful?6QO3L98VHJ9E3726835239
Apr 28, 2018
Hawaii Dave
5 out of 5 stars review

Which One To Buy?

[This review was collected as part of a promotion.] I've been using Filtrete air filters in my A/C since my house was built. First I started with the red filters (1000), but upgraded to the purple (1500) ones and now the blue (1900) version. The 1500 and 1900 versions have much more filter surface area to catch particles than the 1000 version so I use only those now. But frankly, I can't say whether the blue 1900 version is any better than the purple 1500 filter. I think it's more important to make sure you don't let your filters go too long between changes. My neighbor only changes his when they start looking like a fur coat. That's way too long and will overtax your HVAC. He's already had to replace his central A/C after only twelve years. Tip: write the date you installed the new filter all along its frame. That way you can see the date just by looking up at the air return without having to get a ladder and opening it up.

Review from filtrete.com
Helpful?6QO3L98VHJ9E3726835239