Lennox X6673 20x25x5 MERV 11 Healthy Climate Furnace & AC Air Filter
X6673 2-Pack Filters Fast Replacement for Lennox X6673 20x25x5 MERV 11 Healthy Climate Furnace & AC Air Filter - 2-Pack
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1" MERV 13 Furnace & AC Air Filter by Filters Fast® - 6-PackThe Lennox X6673 20x25x5 MERV 11 Healthy Climate Furnace & AC Air Filter is designed to improve indoor air quality by capturing dust, pollen, mold spores, pet dander, smoke, smog, and other airborne allergens before they circulate through your home. This genuine Lennox replacement filter is compatible with Lennox Healthy Climate air cleaners and numerous Carrier, Honeywell, and Trion Air Bear air cleaner systems that use the X6673 filter size.
Key Benefits:
- Genuine Lennox OEM replacement filter.
- MERV 11 filtration captures dust, pollen, mold spores, pet dander, smoke, smog, and common allergens.
- 98% efficient filtration media captures particles as small as 0.3 microns before they accumulate on HVAC coils.
- Extended 6–12 month filter life reduces maintenance compared to standard 1-inch filters.
- High dust-holding capacity maintains airflow while extending HVAC system performance.
- Fits multiple air cleaner brands, including select Lennox, Carrier, Honeywell, and Trion Air Bear systems.
- Protects HVAC equipment by reducing debris buildup on internal components.
Specifications:
- Brand: Lennox
- Part Number: X6673
- Pack Size: 1
- Nominal Dimensions: 20" x 25" x" 5"
- Actual Dimensions:19-3/4" x 24-3/4" x 4-3/8"
- MERV Rating: 11
Compatible Parts:
The Lennox X6673 is the correct replacement for the following part numbers:
- DLXX6673
- HCF20-11
- HCF20-16
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Compatible Models:
The Lennox X6673 is correct replacement for the following model numbers:
- Carrier EZXCAB020 Air Cleaner
- Carrier FILCABCC0020 Air Cleaner
- Carrier MACA Air Cleaner
- Carrier MPKA Air Cleaner
- Carrier MPKA0020 Air Cleaner
- Honeywell 1024 Air Cleaner
- Honeywell 1032 Air Cleaner
- Honeywell 1038 Air Cleaner
- Honeywell 1067 Air Cleaner
- Honeywell 2010 Air Cleaner
- Honeywell 2044 Air Cleaner
- Honeywell F100-1037 Air Cleaner
- Honeywell F150E-1034 Air Cleaner
- Honeywell F200E-1037 Air Cleaner
- Honeywell F25A1068 Air Cleaner
- Trion Air Bear 447380-002 Air Cleaner
- Trion Air Bear 453000-001 Air Cleaner
- Trion Air Bear 455602-001 Air Cleaner
- Trion Air Bear SUPREME 2000 Air Cleaner
- No results for {X}
Frequently Asked Questions:
How do you install the Lennox X6673?
- Unwrap the new Lennox X6673 filter and place it in front of the old one so that you can see the bottom of the old filter.
- Use a vacuum cleaner to remove any dirt from around the old filter.
- Remove any obstructions from behind or below the furnace.
- Remove any debris from around the furnace itself.
- Ensure that no edges or corners are tucked into another compartment.
- Line up tabs on top of the filter with slots on top of the blower.
- Locate arrows on the backside of the frame.
- Align frame with slots on top of the blower.
- Press down on the frame until it locks.
How often should you replace the Lennox X6673?
Changing your Lennox X6673 is a very quick and easy process that should be done once every six to twelve months.
What contaminants does the Lennox X6673 reduce?
The Lennox X6673 is a MERV 11 air filter, which means that it reduces the following contaminants:
- Dust
- Pollen
- Mold Spores
- Pet Dander
- Smoke & Smog
- Allergens
What is the benefit of a 5-inch media filter compared to a 1-inch filter?
A 5-inch media filter offers:
- Greater dust-holding capacity
- Longer service life (typically 6–12 months)
- Reduced maintenance
- Better protection for HVAC equipment
- Lower airflow restriction over its service life compared to many 1-inch filters
The Lennox X6673 is designed as a high-efficiency alternative to standard 1-inch filters.
Does the Lennox X6673 help with allergies?
Because it captures pollen, mold spores, pet dander, dust, and other common allergens, the MERV 11-rated Lennox X6673 can help improve indoor air quality and reduce airborne allergy triggers.
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