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Filter King 21x22x1a Air Filter | 4-PACK | Carbon MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 22 x .75'

4.6 (7) Write Review
Free shipping on orders over $29.99

$68.21

$ 31 .99 $31.99

In Stock

1.Size:8x8x1


About this item

  • FILTER: This is a Carbon MERV 8 rated 4 pack Air Conditioner Filter | Size: 21" x 22" x 1a" - Actual Size: 21" x 22" x .75"
  • MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA Establishment Number: 103501-FL-1)
  • MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters
  • CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv 8 Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours.
  • FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.


Filter King Carbon Merv 8 21x22x1a 4-Pack Air Filter actual size is 21x22x.75. Our 21x22x1a Furnace Filters are designed to last up to 90 days. These pleated 1-inch air filters are ideal for maintaining the efficiency of your heating and cooling systems. Make sure you measure your filter. The actual size of this pleated Carbon Merv 8 filter is 21 x 22 x 3/4


Mary Lynn Johnson
Reviewed in the United States on March 4, 2025
Our home is one of those with this slightly odd size. This arrived, later than expected (thus thee 4 stars) and we placed it right away. Very pleased with the construction and the effectiveness. I believe the airflow to our heater is more effective than it was with the slightly smaller filter I was using (about 1” too short in length). I don’t know whether the shipping issue is within my state or the vendor’s but I was kept informed of the shipping delays. I purchased a large package and when I place the last filter I will order again so I will have plenty of time before I need a replacement. Overall, given the odd siz, I don’t think the purchase price was outrageous.
Gricelda M Diaz
Reviewed in the United States on July 23, 2024
Fast arrived on time
JON
Reviewed in the United States on July 19, 2024
Well they didn't fit perfectly like the air filter system I bought. Had suggested them and the size they do work fine. I just had to pinch it in about a half an inch. So far. Good quality. Great value. More efficient filtering than the original that was coded in about an ¼ inch of fur And dust even after I cleaned it twice best I could while waiting for the funds to be able to do a new set
CN
Reviewed in the United States on July 15, 2024
It is smaller than my normal filter. I had to add an filter on the side because it whistled
Pen Name
Reviewed in the United States on November 8, 2024
Very pleased with these filtersI have tried several other filters and so Far these are the best fit and quality
Max
Reviewed in the United States on October 9, 2024
10/10
Connie R
Reviewed in the United States on October 1, 2024
It was time to change filters