---
product_id: 121085396
title: "K&N 20x20x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Size 19.6 x 19.6 x 0.8 in), HVC-12020"
brand: "k&n"
price: "$185.42"
currency: USD
in_stock: true
reviews_count: 13
category: "K&N"
url: https://www.desertcart.us/products/121085396-k-and-n-20x20x1-hvac-furnace-air-filter-lasts-lifetime
store_origin: US
region: United States of America
---

# Washable & reusable Optimized airflow design MERV 11 filtration power K&N 20x20x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Size 19.6 x 19.6 x 0.8 in), HVC-12020

**Brand:** k&n
**Price:** $185.42
**Availability:** ✅ In Stock

## Summary

> ♻️ Breathe smarter, save forever—your last HVAC filter ever needed!

## Quick Answers

- **What is this?** K&N 20x20x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Size 19.6 x 19.6 x 0.8 in), HVC-12020 by k&n
- **How much does it cost?** $185.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/121085396-k-and-n-20x20x1-hvac-furnace-air-filter-lasts-lifetime)

## Best For

- k&n enthusiasts

## Why This Product

- Trusted k&n brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Enhanced HVAC Efficiency:** Maximizes airflow to keep your system quiet and energy-smart.
- • **Lifetime Washable Design:** Rinse, reuse, and save—ditch disposable filters forever.
- • **Advanced MERV 11 Filtration:** Captures dust, allergens, and pollutants for cleaner air at home or office.
- • **Easy, No-Hassle Installation:** Fits standard HVAC systems perfectly—upgrade your air quality in minutes.
- • **Durable Synthetic Polymer Build:** Maintains shape and performance through countless cleanings.

## Overview

The K&N 20x20x1 HVAC Furnace Air Filter is a premium, washable, and reusable filter rated MERV 11, designed to capture airborne dust, allergens, and pollutants while optimizing airflow for HVAC efficiency. Built with durable synthetic polymer, it maintains performance through repeated cleanings, offering a sustainable, cost-effective alternative to disposable filters. Perfect for home or office, it installs easily in standard systems and supports healthier indoor air quality with long-term savings and environmental benefits.

## Description

Since 1969, K&N has been inventing and manufacturing creative air filtration solutions for the automotive market. Now that expertise has been brought into the home, with K&N’s new washable, reusable HVAC air filter. Made from a pleated synthetic filter media, K&N lifetime washable home air filters provide excellent filtration and dust capacity for long-life performance. 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. Save money, help the environment, and protect your family with K&N!

Review: It's not the fanciest or sturdiest, but it's nice, and appears to work .. - I've slowly replaced every filter-based system with these K&N Home filters. HVAC? Replaced. PC? You betcha, I replaced a side panel on my Lian Li O11 Dynamic with one and can now run a positive pressure system, so dust can't get in .. so nice (if you're curious, I selected that beefy case just for this as the extra width and internal 3x120fan bay allow for this type of filtration once you seal up the inner-wall). Home Theater cabinet? Yep! Air purifier? I jerry-rigged that too and so far, my neighbor hasn't noticed his box fan missing. Are they a tad expensive? Yeah, but the amount of use you're getting out of them is pretty high and they come in cheaper than many of the other "washable" aluminum filters. Out of all "washable" filters I've tried, these function pretty dang well -- and cleaning is a synch. No, you don't need their filter cleaner, you can use some diluted degreaser (dishwashing soap works) in a spray bottle, spray that on, and let it soak, then wash it out (opposite of the airflow, so the dust collecting side is down). Use a flashlight or ceiling light to see through to gauge the cleanliness, more light = more clean .. science! But let's talk fit and performance. Fit: - They're a tad undersized, so you'll want to get some gasket material to make sure you get a good seal. - They come in only (at the moment) 1x# sizes (more like 3/4"), but I hope they will introduce 2" and 3" sooner than later. Performance: - Air flow is surprisingly high with these, higher than a normal comparable fabric/paper filter, and way higher than one rated at this spec. - They have a very high pleat count, so that maximizes the surface area to allow for better airflow. - Static pressure was also better in comparison during my tests. - My HVAC blower got "quieter" running 1x25" filters versus the 2x25" disposable fabric-based ones I had in it before. - Be cognizant to keep them maintained and washed for best performance. I haven't finished my round of additional testing (lack the right meter) to see the particle size that gets through these, but I will say that since switching to them about 6 months back, all I find in the house is a very fine dust -- I'm planning additional tests to see if that is just residual dust in the system (~16 years worth) that is working free.
Review: Great price nice addition to K&N - Another great k&n product now I have in my house and cars great quality hard frame great fit air flow nice Great price

## Features

- Washable & Reusable by Design: Simply rinse and reinstall for lasting performance, long-term savings, and reduced waste.
- Premium Filtration: Captures airborne dust, allergens, and particles for a cleaner, healthier indoor environment
- Optimized HVAC Performance: Allows for airflow, supporting consistent temperature control and system longevity
- Durable Construction: Holds its shape and effectiveness through repeated cleanings
- Hassle-Free Fit: Designed for a direct, no-fuss installation in standard HVAC systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PG5Q16K |
| Air Filter Construction | Pleated |
| Best Sellers Rank | #38,807 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #272 in Furnace Filters |
| Brand | K&N |
| Brand Name | K&N |
| Common Applications | Appliances, Residential |
| Compatible Devices | Air Conditioner, Furnace, HVAC System |
| Compatible Hvac Systems | residential |
| Customer Reviews | 4.7 out of 5 stars 2,704 Reviews |
| Filter Shape | Rectangular |
| Global Trade Identification Number | 00024844370464 |
| Included Components | HVAC Filter |
| Item Dimensions L x W x Thickness | 19.6"L x 19.6"W x 0.8"Th |
| Item Type Name | Lasts a Lifetime, Washable, Merv 11, Helps Protect Against Virus, Germs, Allergies, Pollen, Smoke, Dust, Pet Dander and More, Breathe Safely at Home or in the Office |
| Item Weight | 2.73 Ounces |
| MERV Rating | 11 |
| Manufacturer | K&N Engineering, Inc. |
| Manufacturer Part Number | HVC-12020 |
| Material | Synthetic Polymer (PMMA) |
| Material Type | Synthetic Polymer (PMMA) |
| Model Number | 20x20x1 |
| Number of Items | 1 |
| Product Dimensions | 19.6"L x 19.6"W x 0.8"Th |
| Product Grade | new |
| UPC | 024844370464 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Lifetime |

## Product Details

- **Brand:** K&N
- **Material:** Synthetic Polymer (PMMA)
- **Product Dimensions:** 19.6"L x 19.6"W x 0.8"Th
- **MERV Rating:** 11
- **Compatible Devices:** Air Conditioner, HVAC System, Furnace
- **Item Weight:** 2.73 Ounces
- **Global Trade Identification Number:** 00024844370464
- **UPC:** 024844370464
- **Number of Items:** 1
- **Manufacturer:** K&N Engineering, Inc.

## Images

![K&N 20x20x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Size 19.6 x 19.6 x 0.8 in), HVC-12020 - Image 1](https://m.media-amazon.com/images/I/81JabckDA3L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's not the fanciest or sturdiest, but it's nice, and appears to work ..
*by K***. on August 22, 2023*

I've slowly replaced every filter-based system with these K&N Home filters. HVAC? Replaced. PC? You betcha, I replaced a side panel on my Lian Li O11 Dynamic with one and can now run a positive pressure system, so dust can't get in .. so nice (if you're curious, I selected that beefy case just for this as the extra width and internal 3x120fan bay allow for this type of filtration once you seal up the inner-wall). Home Theater cabinet? Yep! Air purifier? I jerry-rigged that too and so far, my neighbor hasn't noticed his box fan missing. Are they a tad expensive? Yeah, but the amount of use you're getting out of them is pretty high and they come in cheaper than many of the other "washable" aluminum filters. Out of all "washable" filters I've tried, these function pretty dang well -- and cleaning is a synch. No, you don't need their filter cleaner, you can use some diluted degreaser (dishwashing soap works) in a spray bottle, spray that on, and let it soak, then wash it out (opposite of the airflow, so the dust collecting side is down). Use a flashlight or ceiling light to see through to gauge the cleanliness, more light = more clean .. science! But let's talk fit and performance. Fit: - They're a tad undersized, so you'll want to get some gasket material to make sure you get a good seal. - They come in only (at the moment) 1x# sizes (more like 3/4"), but I hope they will introduce 2" and 3" sooner than later. Performance: - Air flow is surprisingly high with these, higher than a normal comparable fabric/paper filter, and way higher than one rated at this spec. - They have a very high pleat count, so that maximizes the surface area to allow for better airflow. - Static pressure was also better in comparison during my tests. - My HVAC blower got "quieter" running 1x25" filters versus the 2x25" disposable fabric-based ones I had in it before. - Be cognizant to keep them maintained and washed for best performance. I haven't finished my round of additional testing (lack the right meter) to see the particle size that gets through these, but I will say that since switching to them about 6 months back, all I find in the house is a very fine dust -- I'm planning additional tests to see if that is just residual dust in the system (~16 years worth) that is working free.

### ⭐⭐⭐⭐⭐ Great price nice addition to K&N
*by R***N on August 30, 2025*

Another great k&n product now I have in my house and cars great quality hard frame great fit air flow nice Great price

### ⭐⭐⭐⭐⭐ Product review comparison with Trophy Air MERV 4/5 electrostatic washable filter
*by J***P on July 10, 2022*

I ordered 2 of these K&N filters to fit 2 of 3 of my returns. Picked up 14x20x1 and 20x20x1 since they don't have 14x14x1 (yet). I've read plenty of reviews before purchasing both K&N and Trophy Air filters. What I've concluded from those reviews are, either your sacrificing air quality vs air flow efficiency... of course since the higher MERV will restrict more air flow to provide cleaner air. This has always been the case and if you want a whole house filter, then consider expanding to a 4" filter since they are replaced 6 months to 1 year. What I did not see in these reviews are actual numbers or metrics from an anemometer. I've conducted a simple test in Feet Per Minute holding the anemometer center of the return vent: # 14x20x1 (Downstairs, Amana 2 ton system) - Trophy Air (MERV 4/5): ~600 FPM - K&N (MERV 11): ~500 FPM # 20x20x1 (Upstairs, Amana 2.5 ton system) - Trophy Air (MERV 4/5): ~425 FPM - K&N (MERV 11): ~400 FPM # 14x14x1 (Upstairs, Ext. of Amana 2.5 ton system) - Trophy Air (MERV 4/5): ~225 FPM - K&N (MERV 11): TBD - Will update once they produce this size Based on my test results, we can see it's not that dramatic difference like some critical reviews. This is why I like numbers rather than "bro science" assumptions. For those who need >= MERV 13 / filtering <= 1 micron, look into expanding from 1" to >= 4" filter. Seen too many negative reviews with folks expecting >= MERV 13 who bought these... ...washable filters... 🤨 Since the K&N has a higher MERV rating, this filter will be used during the allergy seasons; fall and spring. I will be using the Trophy Air during the summer and winter seasons since the HVAC runs more during these months. Both are excellent quality and will need more time to experience how well they perform. I ordered both since I would need a filter while the other one is drying and having 2 different MERV rated filters, this K&N was the perfect choice since it's one of the highest (MERV 11) rated washable filter. Will update this review...

## Frequently Bought Together

- K&N 20x20x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office, HVC-12020
- K&N HVAC Filter Cleaner: 32 Oz Spray Bottle Filter Cleaner and Refresher; Restores K&N Home Air Filter Performance; 99-6010
- K&N 20x30x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office, HVC-12030

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-21*