Filterbuy 21x27x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97)

Good: Sturdy and decent quality. I've seen name-brand filters, fresh out of the package, with a full third of the filter material pleats crushed together, requiring a fair amount of time to work loose and massage into shape and re-glue to make them usable. I have yet to see one of these that needed more than pushing a couple of cardboard separators back into place before installation. Fits my furnace where some other brands of the same stated size didn't. Decent price. Bad: Nothing significant. Five stars.

They fit fine and seem to work well.

I was skeptical about buying a non OEM brand filter for my Carrier brand furnace but decided to give it a try since the OEM filters were so expensive. The filters were delivered quickly at half the OEM price. They were the right dimensions and a good fit. Quality was good too.

I did a lot of research to find this type and brand of air filter for our HVAC system. This is the best buy and product, compared to those also selling here.

Package came quick and no damage to the box or filters. Installation was easy. I can’t comment on the filtration yet since we just purchased but I will be back if it’s not good!

This filter size was a perfect fit!!! The box came nicely sealed. I feel that it’s fully functional and improves the quality of air in our home.

Works well and is easy to install. Glad I found this product. Price is also pretty good!

Aprilaire filter systems are awesome but they are a pain in the ass. If you try to use the plastic box and replace just the filter element. Buying these complete filter boxes is your best option to keep it simple. These are what I use to replace the filter for my aprilaire 401 system. These work great. They fit right in... The only thing you have to make sure is you put them in the right direction. Follow the arrows for the airflow.

Great substitute for FILxxCAR0024

I purchased MERV8 filters to reduce the wear on my furnace blower. The 5” thick filter is a perfect, snug fit! I am so pleased. (Previously, I was using 3M Filtrete filters. They were just a fraction too thick, so the edges got crumpled when I forced it into the filter cabinet. Air could bypass the filter, and I was worried about bits of cardboard getting sucked into the blower.)

Wrong size. Even though I double checked my furnace size these did not fit. Wanted to return the item so I can get the correct size but seller does not cover postage. It would be $204 to return (double what the item costs). Nothing wrong with the actual product but unless you are 1000% sure about the size don't purchase from here

Very satisfied. Thank you

In 2021 I purchased a pack of 3 for $66.00 Now they are a pack of 2 for $114.00 I wish someone would design a reusable filter. This is such a waste to the environment . 🫤