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Lennox X6670 - Healthy Climate HCF16-11 MERV 11 Replacement Filter 16" x 25" x 5"

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About the Lennox X6670

The Lennox X6670 - Healthy Climate HCF16-11 MERV 11 Replacement Filter is the upgraded version of the MERV 10. It is the same size, measuring 16" x 25" x 5", but also offers better filtration and effectiveness! This is a genuine Lennox replacement filter and offers a suitable replacement for many Lennox, Honeywell and carrier air cleaners that fit a 16" x 25" x 5" replacement filter media.

This MERV 11 Lennox X6670 filter offers a 98% efficient filtration media capturing particles as small as 0.3 microns before they can collect on your coils. This is a high-efficiency alternative to one-inch filters. Its larger media capacity allows for greater dust-holding ability providing you with cleaner air throughout your space.

The Lennox X6670 MERV 11 filter is a suitable replacement filter for the Lennox HCC16-28 Air Cleaner as well as many other Lennox, Honeywell and Carrier Air Cleaners that accept a 16" X 25" X 5" filter media.

The Lennox X6670 filter is designed to fit the X6660 HCC16-28 Air Cleaner, as well as the following air cleaner models:

  • Lennox: HCC16-28, HCC16-28, HCXF16-16, HCF16-16, HCF16-11
  • Carrier: EZXCAB016, FILCABCC0016, MPKA0016, MACPAK, MPKA, MAC
  • Honeywell: F25A1043, F25F1042, F35F1008, F100F1012, F150E1026

Available in single, double or 6-packs, you can ensure you always have the replacement filter on-hand when you need it most.

What do the Numbers and Information Mean on Lennox Furnace Filters?

The Healthy Climate Filter, or HCF16-10, was replaced by this upgraded version of the MERV 11. The MERV is the Minimum Efficiency Rating Value and it offers a scale from about 1 to 20. The importance of this scale is that the higher the MERV rating of a replacement filter, the more efficiently it filters small particles out of the air each time it passes through the filter. Anything higher than a MERV 7 typically helps with protecting, and in some cases, improving the air within a home. For people with allergy or asthma, we typically recommend a replacement filter with a MERV rating of above 11.

How Often Should I Replace My Lennox X6670 Filter?

As a general rule of thumb, we recommend 5” furnace filters be changed every 12 months or when they are visibly showing signs of being dirty. Believe it or not, your air filter plays a pretty significant role in keeping your furnace healthy and in proper working order. Since furnace filters can’t get rid of the debris they collect, if your Lennox X6670 air filter is not changed often enough, it will eventually clog to the point that air cannot pass through it. A lack of airflow in your furnace can trap heat in your system and lead to major issues. The wear and tear on your furnace increases and the lifespan of your furnace could eventually be shortened.

Why Choose DiscountFurnaceFilter?

At DiscountFurnaceFilter, all of our filters are new OEM and can ship quickly to make sure you have what you need exactly when you need it. We have the Lennox X6670 in stock and offer same-day shipping on some orders. All orders over $50 ship FREE making us the #1 choice for low price furnace filters.

Have a question? Feel free to click here to contact our Sales Department or call 888-623-4678.


Best Seller? Yes
Brand Lennox
Depth 5"
Dimensions (Inches) 16 x 25
MERV Rating MERV 11
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