








🌿 Elevate your air game — because your home deserves premium protection!
The Filtrete 20x25x1 AC Furnace Air Filter by 3M features a MERV 13 rating and MPR 1900, capturing up to 62% of microparticles including bacteria, viruses, pollen, and smoke. Its pleated 1-inch design ensures superior airflow while maintaining HVAC efficiency. Certified asthma and allergy-friendly, this 4-pack filter set includes smart app reminders for timely replacements every 90 days, making it the go-to choice for millennial professionals seeking cleaner, healthier indoor air.







| Manufacturer | 3M |
| Part Number | UA03-4PK |
| Item Weight | 12.6 ounces |
| Product Dimensions | 25 x 1 x 20 inches |
| Item model number | UA03-4PK |
| Is Discontinued By Manufacturer | No |
| Size | 20x25x1 |
| Color | White |
| Style | 4-Pack |
| Material | Polypropylene |
| Pattern | 4-Pack |
| Item Package Quantity | 1 |
| Minimum Efficiency Reporting Values (MERV) | 13 |
| Certification | certified frustration-free |
| Usage | FOR RESIDENTIAL use only |
| Included Components | 4 Filters |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | This 3M product will be free from defects in material and manufacture. If this 3M product is defective, your exclusive remedy shall be, at 3M's option, replacement of the 3M product or refund of the purchase price of the 3M product. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country. To obtain warranty service, contact 3M at the address listed on the product package. |
C**L
Excellent! Buy!! The air smells so clean!
Excellent Filters! Very Excellent! Did I say excellent...?High quality! Worth every penny if you want clean air to breathe. The air has such a clean smell! These fit very well with no gaps for dirty air to squeeze through.
M**E
Home made 20x20x20 box high particulate filter - inexpensively
My use was possibly a unique, I was looking to make a large whole room high particulate filter inexpensively. For my use, I take 4 of these and using duct tape, I seal the edges of each to make a 20x20x20 box, I used the actual brown box to cut a flat bottom and then tape a ordinary house box fan taped (and sealed) facing upwards to pull all the air into the filters in the room and fresh clean air out. These work great if working in a confined space like a garage or barn with lots of dust like cutting wood.Thes worked perfectly with a box fan and duct tape, better then the most expensive store bought filter.
K**L
Great Buy
Happy with these filters and glad I don't have to go out to get them. They arrive quickly and in excellent condition.
D**.
5 stars
Good flow and sturdy. Will check in a month and see how it looks and flows
S**N
Work REALLY well.
Great filters. They fit nice and tight. No rattling around and work really well
J**N
Does what it says; good for Corsi-Rosenthal Box room air filter.
Four stars for meeting all requirements. Doesn't _exceed_ expectations, so it doesn't get the fifth star.This package of four filters, plus cardboard pieces cut from the box, plus a fan, plus some tape to seal edges, yields a highly effective and moderately portable room air filter. Corsi-Rosenthal boxes were developed during the COVID-19 "plague years", and can be surprisingly effective. Even if you don't need it for removing virus particles from the air, filtering can reduce allergens and other indoor pollutants.Or, of course, you could get these for their intended use as furnace air filters. In that application the manufacturer suggests replacing them every three months, so this is a year's supply.
S**3
Best Filters on the market!!!
Great filters, at excellent price…definitely recommend.
R**T
Worked fine on my Trane System
Worked as expected. Flgood value.
Trustpilot
3 weeks ago
2 months ago