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Lennox X6669 PCO-20C 21X26X4 Merv 16 Filter Replacement

X6669
$208.95


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Lennox X6669 100908-05 PureAir PCO-20C MERV 16 Filters Fast® Replacement 21x26x4

X6669 FF
$129.95
Buy 1 - 3 for $129.95 ea.
Buy 4+ for $119.95 ea.


Ships in 1 to 2 business days.
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Lennox X6669
Lennox X6669 FF
Filter Life
6 - 12 Months
6 - 12 Months
MERV Rating
MERV 16
MERV 16
Reduces Dust
Reduces Pollen
Reduces Mold Spores
Reduces Pet Dander
Reduces Smoke & Smog
Reduces Allergens
Reduces Bacteria
Reduces Virus Carriers
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Product Information
Frequently Bought With This Item

The Lennox Lennox X6669 PCO-20C 21X26X4 Merv 16 Filter Replacement MERV 16 Pleated Filter Media is the correct replacement for the following models:

  • Pureair air cleaner PCO-20C

The Lennox X6669 is a pleated box filter for your Pureair air cleaner. This air filter box measures 21x26x4 inches and is a pleated air filter. The Lennox x6669 furnace filter box can also be used to upgrade your older Pureair unit to a MERV 16 level system. This will require a new UVA lamp.

Lennox X6669 MERV 16 Pleated Filter Media Specifications:

  • Contains 1 Filter
  • Product Dimensions: 21x26x4
  • Part Number: X6669, HCFPC020-16
  • Pleated air filter
  • MERV 16 filter

The Lennox Pureair air filter box is a MERV 16 filter that will keep your air free from pollutants and contaminants. The pleated filter will trap dust, pollen, dander and other small particulates from your air, keeping them out of the air that you breathe. The Lennox x6669 only needs to be changed every 6 months.

Compatible Parts:

The Lennox X6669 is the correct replacement for the following part numbers:

Part Number
DLXX6669
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Customer Reviews:

Total Reviews: 2 Average Rating: 3.5 / 5.0

Filtersfast Reviews on Trust Pilot external site
Beverly Bowles2025-08-26

I DON'T REMEMBER ORDERING THIS FILTER. PLEASE CANCEL ALL FUTURE ORDERS1. THANK YOU. THE FILTER WAS TOO EXPENSIVE.

Collected by Trustpilot.com
Sue2021-05-11

I think these filters are a bit spendy

Collected by Trustpilot.com

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