K&N 20x20x1 AC Furnace Air Filter; Lifetime Washable Reusable Filter; Merv 11; Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Smog, and More; Breathe Clean Fresh Air: HVC-12020
K&N 20x20x1 AC Furnace Air Filter; Lifetime Washable Reusable Filter; Merv 11; Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Smog, and More; Breathe Clean Fresh Air: HVC-12020
Hero image 0 of K&N 20x20x1 AC Furnace Air Filter; Lifetime Washable Reusable Filter; Merv 11; Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Smog, and More; Breathe Clean Fresh Air: HVC-12020, 0 of 6

K&N 20x20x1 AC Furnace Air Filter; Lifetime Washable Reusable Filter; Merv 11; Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Smog, and More; Breathe Clean Fresh Air: HVC-12020

4.4 stars out of 164 reviews
(4.4)|
164 ratings

Key item features

  • Filter Dimensions: This AC furnace air filter measures 20x20x1 inches, suitable for various HVAC systems.
  • Reusable Design: Features a lifetime washable and reusable design, eliminating the need for repeated purchases of disposable filters.
  • Advanced Filtration: Utilizes a pleated synthetic filter media with a Merv 11 rating for excellent filtration and dust holding capacity.
  • Contaminant Capture: Effectively filters out common airborne contaminants including allergies, pollen, smoke, dust, pet dander, mold, and smog.
  • Air Quality: Designed to improve indoor air quality by reducing various airborne particles, contributing to cleaner, fresher air.
  • Easy Maintenance: Simple and easy to clean, allowing for convenient washing and reinstallation whenever dirty.
  • System Efficiency: Provides increased airflow, which helps in maintaining the efficiency of HVAC systems.
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Current price is $69.15$69.15/oz
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Columbus, 43215
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Sold and shipped by Advance Cycle Parts
4.315245478036176 stars out of 5, based on 774 seller reviews(4.3)
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4.4 out of 5 stars
stars164 ratings111 reviews
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Reviews summary

Pros
  • : Filter is designed for easy cleaning and reuse.
  • : Made with materials that are long-lasting and easy to clean.
  • : Offers cost-effective options with reusable products.
  • : Can be cleaned with water or foam for multiple uses.
  • : Filter fits securely in place.
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Showing 1-3 of 111 reviews

Nov 19, 2025
CLLARK1
Item details
Size: 20x20x1
Sold and shipped byK&N
5 out of 5 stars review

Verified Purchase

K%26N makes an excellent air HVAC filter. They have many years of experience behind them in the automotive industry. Filters are very easy to clean and or backed by a lifetime warranty. They also make a cleaning spray to make cleaning fast and easy.

Helpful?2RBHIXPNL2R5308340051
Jan 24, 2025
Brian
Item details
Size: 16x25x1
Sold and shipped byK&N
5 out of 5 stars review

Verified Purchase

So far so good.

I haven't had to clean my filter yet but it is working well after a month of very cold weather. This filter seems to let more air pass through vs the expensive disposable filters I used to use. With the better airflow I haven't noticed any more dust than with the disposables either so so far so good.

Helpful?2RBHIXPNL2R5308340051
Aug 15, 2025
JB
Item details
Size: 20x24x1
Sold and shipped byK&N
5 out of 5 stars review

Verified Purchase

Fit perfectly works great

Helpful?2RBHIXPNL2R5308340051