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20x25x5 AIRx ALLERGY Replacement for Lennox Model X6673 Air Filter - MERV 11, 2-Pack
Model: 20x25x5-LX-ALLERGY / Part: #180865

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Average rating 4.6/5
5 stars
(85)
4 stars
(14)
3 stars
(2)
2 stars
(5)
1 star
(3)
- Free Returns
- 100% Compatibility Guarantee
Replacement for Lennox Model X6673 Filter - 20 x 25 x 5 - 2-Pack
FREQUENTLY BOUGHT TOGETHER
MAX Protection MERV 16 Air Filter - Replaces Honeywell 16x25x5 Filters
MFG#: 16x25x5HW-MAX
$63.95
Is this the right air filter for you?
If you want to remove the particulate in your household air that causes allergies, this is the filter for you. You won't find this filter in your local "big box store" and you'll probably pay a premium if you purchase it through your contractor. Make it easy on yourself and purchase online. We'll deliver quickly to your front door.
- Quality 4-3/8" pleated air filter offers improved filtration and longer service life over common 1" filters
- MERV 11 rating means the filter attracts household allergens like dust, pollen, mold spores, and dust mite debris that irritate your lungs
- Replacement for the popular Lennox Healthy Climate X6673 - nominal size 20x25x5 (or 20x25x4)
- Replace every 6-9 months under normal use
- Made with pride in the USA
- Fast Shipping and Free Returns on all filters
- This filter is not manufactured by Lennox
What does this air filter remove?
What part numbers does this filter replace?
- Lennox Healthy Climate X6673, HCF20-10
- Lennox Healthy Climate X6673, HCF20-10
What air cleaners does this filter fit?
- Lennox HCC20-28, Lennox BMAC-20C
Do you want to know about the technical specs?
Nominal Dimensions | 20 25 x 5" |
Actual Dimensions | 197/8" x 24-7/8" x 4-3/8" |
Filter Media | Electrostatically charged 100% synthetic gradient media that does not support microbiological growth |
Filter Support Grid | 30 gauge galvanized expanded metal grid |
Frame | Moisture resistant double-wall beverage board |
Max Temperature | 180F (82C) continuous service, peak 225F (107C) |
Max Humidity | Resistant to 100% R.H. |
Reviews

4.6 / 5
(109)
Colleen Kessler
0 day ago

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2 days ago

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2 days ago

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15 days ago

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26 days ago

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28 days ago

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16 days ago

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24 days ago

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27 days ago

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25 days ago

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28 days ago

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8 days ago

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10 days ago

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10 days ago

george margosian
13 days ago

Replaces These Filters:
Lennox: |
19L17
HCF20-10
X0586
X6673
|
---|---|
National Filter Sales: |
20x25x5
PF-02-202505HW-2
|
Fits In These Systems:
Lennox:
HCC20-28