Filterbuy 20x20x2 Air Filter MERV 13 (MPR 1900) Health Defense Replacement (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 19.50 x 19.50 x 1.75)

These filters are the best made filters I have found to date. Sharp folds, tight construction. They filter so well that I had to tape them, otherwise they are vacuumed by my Carrier system. Unfortunately, filter housings are very poorly designed in most AC systems. By blue taping the filters you prevent any filtering loss that will happen with most systems.Air quality has improved by a huge massive lot vs Merv 8 that I was using. These Merv 13 even help with fumes and cooking smells. I have some serious allergies and these filters are definitely a game changer for those who spend more time at home. I feel soo much better. Extremely happy with the change and the filtration capabilities.I have noticed no change in my carrier system performance whatsoever. I'm sure it is harder for the blower motor to use merv 13 filters, but my AC handles it perfectly. Merv 13 could be too much for some older AC systems, so always consider check your model and capabilities of it.My AC is purposely undersized. I run my AC for about 10 to 15 hours a day during the long Central FL summers. You can see how the new vs old looks in the picture after a hard month of use.If you can, get these, you will love them.

I’ve been using these MERV 13 16x20x1 filters for a few months now, and the difference in air quality is noticeable. They catch everything—dust, pollen, and pet dander. My allergies have improved, and the house just feels cleaner.They fit perfectly in my HVAC system and last the full 3 months (sometimes longer, depending on the season). Just be aware, since they’re a higher MERV rating, your system might have to work a bit harder—but mine has handled it just fine.If you want cleaner air, especially with pets, allergies, or sensitive lungs, these are 100% worth it.

Easy to change and work great. Price is really good as well.

Quality filter. Used 4 filters plus a box fan to create mega filter for garage.

Great air filter for the atypical size vent I have. Works great! Cleans air. No abnormal or funky plastic smells.

Difficult size to find locally. Fit our new furnace perfectly and doing a great job cleaning fine particles out of the air from construction on a new construction home

I had been searching for a 2 inch thick filter seer 13 at a reasonable price and they’re not readily available. The filter was a perfect fit construction of quality material and at a reasonable price. I would highly recommend the product.

I need a specific furnace filter size that can be tricky to track down, but I can always get it quickly from this seller. It is a bit more expensive than some alternatives, but the convenience and reliability of knowing it will show up fast makes it well worth it.