






🛡️ Elevate your air game — because your home deserves the freshest vibe.
Filtrete 16x20x1 AC Furnace Air Filter with MERV 11 and MPR 1000 ratings uses advanced 3-in-1 electrostatic technology to trap dust, pollen, pet dander, and other allergens. Designed for 3-month use, it fits most HVAC systems and integrates with the Filtrete Smart App for timely filter change alerts, ensuring optimal air quality and system efficiency.









| Brand | Filtrete |
| Compatible Devices | Air Conditioner, Furnace |
| EU Spare Part Availability Duration | 3 Months |
| MERV Rating | 11 |
| Material | Polypropylene |
| Product Dimensions | 21"L x 16.38"W x 2.5"Th |
D**Y
Excellent filter at a great value!
The Filtrete 20x20x1 MERV 11 air filter does an amazing job improving air quality in our home. It fits perfectly, is easy to install, and really helps trap dust, allergens, and other particles. I’ve noticed less dust and cleaner air since using these. The quality is outstanding, and the 3-month lifespan makes it very convenient. Reliable performance at a great price. I’ll definitely continue purchasing these!
A**R
Filtret Filters Review
I have been faithfully ordering this product for the past few years and it works wonders in my furnace. Easy to install and they work great. I noticed cleaner air and less dust almost right away. The quality feels solid, they fit perfectly, and last longer than other brands I’ve tried. Great value for the price — I’ll definitely keep using Filtret.
J**O
Great Filters — Noticeable Difference
These Filtrete MERV 11 filters work really well. Easy to install, fit perfectly, and I can tell a difference in air quality pretty quickly — less dust and fewer allergens floating around. The 2-pack is convenient, and they last the full three months. Reliable and worth the price.
S**E
Great quality for the price and does exactly what it should
I was not looking to spend a lot on air filters, but after having an HVAC company come out and tell me I needed replacements, I ordered these specifically to fit the spot my system required. So far, they have been holding up really well. The quality feels solid for the price point, and I have noticed a difference in air quality in my home since installing them. They fit properly, stay in place, and are doing exactly what they are supposed to do. I also really like that they come in a two-pack, which makes the value even better. For the price, I am very impressed with the performance and would absolutely order these again. I may even set this up on auto-ship because the quality for the cost is excellent. Overall, these totally did the job and were a great find.
J**H
Wrong Size
I live in an apartment that supplies free air filters each month. With that privilege, they provide the worst possible air filters you can imagine that provide no type of protection, whether that's a HEPA filter, virus protection, dander, etc., whatever you are looking for, apartments will give you the most affordable filters for their budget and don't care about human protection and safety. So, I like to purchase my own filters but they are super pricey going this route. Quality vs. Quantity. My apartment filter is measured at 20x20x1 which is what I ordered on Amazon (the Merv 11). It absolutely does not fit my air conditioner. Now, when I purchased a 20x20x1, same brand, at Walmart, it did fit - but online I somehow got a different size. It was too tall/large for my unit and I had to cut the top portion off just so I could get my monies worth. I will say that it does a great job at collecting dust; even found a moth sucked into the unit the other day; but I don't think it really helps as far as smells go. I have a partner that smokes cigs and does not understand what air pressure means when he tries to stand at the back door and blow the smoke outside, opposed to his full body being outside and the door is closed. Due to the air pressure, the smoke just comes right back inside. I do have 3 name-brand purifiers around my house doing most of the legwork, but they can only do so much. The filter doesn't filter smoke. It also states it's a 3-month filter - I don't know how to calculate that. I think it maybe can hold "gunk" up to two months depending on your home, the amount of dust and pet dander you have, and other factors that play into it - but from a mental standpoint, I would not be able to leave a filter full of pet dander and dust in my unit for 3 months. My apartment collects a ton of dust and pet dander so 2 months max. I will say it is pretty good quality material compared to my standard apartment's filter where you can see through it and there's no visible protection. This filter actually has a thick layer of protection - so for the brand, and honestly being able to get more than one month's use out of it, I will absolutely return, but we need to get our measurements figured out.
S**H
Perfect fit
These Filtrete air filters are excellent. The build quality is solid, and the frame holds its shape perfectly during installation — no bending or collapsing like cheaper ones. The MERV 11 rating makes a big difference in capturing dust, pollen, and pet dander; I can definitely tell the air feels cleaner, and there’s less dust settling around the vents. They fit snugly in my HVAC system, and airflow remains strong — no drop in performance. I change mine every 2–3 months, and the used filter always shows how much it’s caught, which proves it’s doing its job. Pro tip: write the install date on the edge with a marker — makes it easy to track replacement cycles. If you have allergies or pets, these are absolutely worth the upgrade from basic filters. Reliable, effective, and great value for the air quality improvement.
J**.
Upgraded Home Air Quality
⭐⭐⭐⭐⭐ So, I recently upgraded my home’s air quality game with a Filtrete furnace air filter from Amazon. I’d heard these things could work magic, but I didn’t quite realize how dramatically they’d change my life. If you’re wondering whether an air filter can make you feel like a wizard of clean air, the answer is a resounding yes. When the package arrived, it was surprisingly heavy. I wasn’t sure if I was unboxing an air filter or a small, portable piece of futuristic technology. Upon opening it, I discovered it was indeed a filter, but it looked like it had been designed by NASA. The thing was so high-tech, I half expected it to come with its own set of instructions and a space suit. Installation was a breeze. The filter slid into place like it was meant to be there, almost as if it was guiding itself into its rightful home. I felt like a proud parent watching their child take their first steps—except in this case, it was my furnace’s first breath of fresh air. It fit so perfectly that I briefly considered giving it a celebratory high-five. Once in place, the magic began. It was as if my furnace had undergone a spa day and was now breathing in the purest, most invigorating air imaginable. Suddenly, my house smelled fresher, like a combination of mountain breeze and just-washed laundry. I felt like I should be walking around in a fluffy robe and slippers, basking in the cleanliness. Here’s where it gets even better: My cat, who previously exhibited signs of extreme disdain for my existence, now looks at me with newfound respect. It’s as if the air filter’s pristine performance has somehow transferred a sense of dignity to my entire household. My indoor air quality has gone from “meh” to “marvelous,” and my cat’s aloofness has turned into approval. Coincidence? I think not. In terms of efficiency, this filter doesn’t mess around. It captures dust and allergens like it’s on a mission to keep my lungs as clean as a hospital operating room. I haven’t sneezed in weeks, and my friends are starting to think I’ve invested in a top-secret air purification system. In conclusion, if you’re on the fence about upgrading your furnace air filter, just go for it. The Filtrete filter is like the superhero of the air filtration world—stealthy, effective, and capable of making your home’s air quality feel like a luxurious retreat. Plus, it might even win you some respect from your furry friends. Your lungs, your nose, and your cat will thank you.
C**N
Less dust in your house !
These are great filters and a good price. The last longer than the cheap ones! I also see less dust in my house with them.
Trustpilot
3 days ago
2 days ago