Filterbuy 20x20x1 Air Filter MERV 8 Essential Dust & Allergy Defense (12-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 19.50 x 0.75)

The quality of these filters is great and they're easy to install. If you dont have pets, 1 filter can pribably last a few months however, I like to replace mine each month, just so my AC doesnt have to work as hard. When its time to reorder, I will be purchasing again

Works perfectly ...great way to buy in bulk protect your HVAC system without putting off.

Second time ordering these. Quality of filter is good, quite sturdy & size is just right. No Issues!

Visible dust and hair filtration, always have on hand

The only filters I will order. Great value. Good quality. Great noise level and use is very easy. Good capacity especially when we live in sand and dust is terrible in our home.

Great fillters fit well

Good cost for a filter that gets most harmful substances out of your air. My kid's allergies are pretty bad, and this works well to help reduce symptoms. They fit perfectly into my hvac and I don't notice any issues with sound. I like this bulk package because I can regularly change my filters. It is crazy how much dust and other things are collected in just a month. Are these the best air filters ever? Probably not? But they do the job and the price is right.

Great filter and made in the USA and the shipping was very fast.

There a many filters claiming all sorts of filtration capabilities, and I am sure some actually achieve great things. Unfortunately, most furnaces (like my Carrier) don't fit the filters tightly enough to block the flow fully and some air will just blow past ... making better filters questionable. Coupled with this, a furnace expert that installed a new unit in my home explained to me that unless your furnace is specifically sized for special filters and has the right mounting box, these better filters will reduce the airflow and hence circulation in your home, and in the worst case, can damage your furnace/AC due to overheating or freezing from the reduced air flow. Their recommendation: go with a MERV 8 (like these) or at the most a MERV 11. Their recommendation for extra filtration: install whole-house floor mounted HEPA filters rated for the space, or a more expensive electrostatic unit on the furnace that doesn't restrict the flow. These are solid MERV 8s that I have been using in my furnace for 3 years now (changing out about every 3 months) without issue. FYI - I did try a MERV 11 that actually pulled out of the box mount and ended up in the bottom of the plenum below it. I don't know for sure, but I guess that moisture built up on it (it was slightly damp) and cut down the airflow causing it to be unseated somehow. I will continue to buy these filters for my home system.

We bought this for our oversized old furnace and couldn't find the size in stores and it fit well, seems to be working well.

Purchased these for my Daikin FIT air handler. Having had to look for many other filters since the 20x23x1 seems to be a very uncommon size, these fit perfectly with no issues at all. Replaced after 3 months and the filter looks like it is doing a good job catching dust and other particles in the air keeping the air handler moving clean air around. Like all filters, these have clear markings to show you which way the filter needs to be aligned for proper air flow. No issues with the airflow being too restricted. No complaints at all with these and will purchase again when needed.

Great product. Just bought it for the first time and works well.

These are perfect