Home > Air Filters > K&N 14x20x1 HVAC Air Filter; Lasts a Lifetime; Washable; Merv 11; Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Smog, and More; Breathe Cleanly at Home, HVC-11420

HVAC Air Filter; Lasts a Lifetime

Hvac System Efficiencydisposable Filters, Long Term Home Air Filter Savingsexcellent Airflow

H&F Rating 171 reviews
All Buying Options
Add to Wishlist
$26 off

 on Amazon

Get it on prime

What We Like

  • Protects against bacteria, viruses, and allergens
  • Airflow helps maintain HVAC system efficiency
  • Washable and reusable filter saves replacement cost


  • Inconvenient to clean

About HVAC Air Filter; Lasts a Lifetime

K&N lifetime washable home air filters provide excellent filtration and dust capacity for long-life performance. Made from pleated synthetic filter media, they are specially designed to reduce contaminants in the air you breathe and can be cleaned easily for years of use in your home, office, or business. Instead of repeatedly purchasing new disposable filters, simply wash and reinstall your k&n filter whenever it is dirty. Helps increase HVAC efficiency High airflow helps reduce HVAC system strain and requires less energy, which can translate to savings for you - after your filter is dry, simply reinstall to enjoy the benefits of K&Ns industry-leading washable filtration technology.

Results of our analysis:

We analyzed 209,584 reviews for 162 products in the Air Filters category.

We then analyzed 171 reviews for this product. None were recent.

Around 71% of reviews were positive and about 24% were negative.

Final Score:

8.04 out of 10, based on these factors:

  • Compatibility
  • Easy to install
  • Easy to maintain
  • Filtration
  • Longevity
  • Overall satisfaction
  • Packaging
  • Quality of material
  • Size
  • Value for money
  • What buyers say about HVAC Air Filter; Lasts a Lifetime

    I can see how efficient this filter is based on inspection of the filter element, Lifetime guarantee means I don't have to worry about buying another filter, which will save me a ton of money over time.

    I contacted K&N sales and requested assistance on the additional sizes, but they are still waiting for a call back.

    The construction is great and the element surpasses any other reuse unit on the market, what more could you ask for? My intake vents bend into place better than the cardboard version, and the sturdy frame actually locks into place better than the cardboard version.

    The cheapskate in me loves the idea of a house filter that can be washed out in a day and can be paid for in a year.

    This filter will save me money in the long run, because I won't have to go to the store to buy more filters.

    Common Questions


    Do you need to use their spray to clean the filter?


    I have the 20x20x1 version which is the same but just a different size. They say you should use the cleaner spray, but I don't think so.


    What is included in the limited lifetime warranty?


    It says on the box lifetime warranty that it is for 10 years, but then it falls apart and should we be worried about it for the seventh or eighth year?


    Is it in 14x14x1?


    I went to their website and found that the size they were looking for was not in their inventory.


    Did this K&N work or not? Our furnace has a 20x 24x4 filter.


    It depends on the tray, if it has a single tray bracket, it should work.


    Is the filter flexible because of the access to my furnace? Is it possible to slide it in horizontally because of the access to my furnace?


    No, it is a stiff plastic frame.

    Do you like this review?