Aerostar 20x20x1 MERV 8 Air Filter, 4 Count, ACTUAL SIZE (19.75 x 19.75 x 0.75), HVAC, Air Conditioning & Furnace Filter Captures Dust, Lint & Pollen (MPR 600 / FPR 5), Made in USA

Bought these for my in-laws as my mother in law has tons of breathing issues (COPD, asthma and allergies) they have a little furball who sheds and even though they clean they accumulate dust quickly. They were using a very low merv rated filter prior to this and I have noticed a difference in their indoor air quality since the switch. They just had a new unit installed and I want them to get the best bang for their buck and their health. Super easy to use - has arrows to show you which way for air flow, and they fit like a glove! Great value in comparison to the big box stores as well! This will also help increase efficiency as it’ll trap smaller particulates from going beyond the filter.

I’ve used this brand for many years. High quality products that really filter out the AZ dust. The full frame makes it easy to install and fits well in each of the 3 sizes we use. They have multiple MERV ratings available so it’s easy to taylor to our needs through the seasons. It looks like a quality product and lives up to their claims. I trust this product to make the air in our home better. It’s a good product for a good price.

These filters are awesome! I got the 20x20x1 size, and they fit perfectly in our ceiling vent. As soon as the AC kicks on, it pulls the filter right into place nice and snug. Super easy to pop in — took maybe 10 seconds. I’ve noticed way less dust floating around, and it seems to help with my seasonal allergies too. The filters feel sturdy and well-made, not like those flimsy ones that bend when you install them. The 4-pack is great too because I can just grab a new one when it’s time to swap it out. They also look really nice and clean. No bends or warps. Very sturdy. For the price, these are honestly a great deal. They do their job, fit right, and keep the air cleaner. I’ll definitely keep buying these.

These filters are fair quality but the cardboard framing isn't very strong. They are good for the price.

Always use these air filters for my home. Always cheaper than HD filters. Easy to install and perfect size, seems to filter my air pretty well. I have a bunch of pets and this thing gets extremely dirty each time I change them out so I feel like it’s working lol

The Aerostar 20x20x1 MERV 13 filters have been great for my DIY air scrubber project. I used them to build a simple setup, and it surprised me how well it cleans up the air in the room. Dust and little particles that used to hang around don’t seem nearly as bad now, and the air just feels fresher overall. The size works well for building around, so it was easy to fit into a basic box-style design without a lot of fuss. With a pack of six, it is easy to swap them out when they get dirty and keep the scrubber working well.

Easy instillation filter! I change mine every month and this is the most affordable brand for the amount. My HVAC guy likes these filters as well!

We use these for our central air conditioner system. We have used them for years, and find them to be reliable and sturdy. We have not had any trouble with them. We have bought them too many times to count. Highly recommend.