2 Pack X6673 20x25x5 Replacement Air Filter for Lennox X6673 HCF20-11, FC100A1037, Furnace HVAC System, MERV 11, Actual Size: 19.75 x 24.75 x 4.38 Inches
Retailer ratings3.6 · 11 ratingsOne of these is on the shelf, waiting its turn in the inspection queue. That price is the most it will list at, never more. Anything we find comes off it. An inspection can also find a unit we will not sell, and then this one never goes on sale.
Want this one inspected next?
We move it to the top of the inspection queue and email you the results, usually within a few hours.
Nothing is held for you. When it goes on sale the first person to check out gets it, and emailing you first is the head start.
Our take
A two-pack of replacement furnace air filters sized 20x25x5 nominal, designed as a substitute for Lennox X6673 and similar HVAC filter models.
- 2-pack of furnace filters
- 20x25x5 nominal size
- MERV 11 rating
- Foldable paper construction, no tools needed
- Cross-compatible with several HVAC filter models
About this item
These are pleated paper air filters made for furnace and HVAC systems that use a 20x25x5 nominal filter size, with an actual measured size of 19.75 x 24.75 x 4.38 inches. They carry a MERV 11 rating, intended to capture common airborne particles passing through the system.
The filters are built as a foldable paper design with a supporting frame, meant to be unfolded and installed without tools. They are listed as compatible with a range of furnace and air cleaner models from Carrier, Honeywell, Lennox, and Trion, in addition to the Lennox X6673 part number.
This listing includes two filters, allowing for one installed and one kept as a spare for a later replacement cycle.
Key specs
| Brand | Henmfely |
|---|---|
| Nominal Size | 20 x 25 x 5 inches |
| Actual Size | 19.75 x 24.75 x 4.38 inches |
| MERV Rating | 11 |
| Material | Paper |
| Shape | Rectangular |
| Count | 2 filters |
| Compatible Models | Carrier EZXCAB020, FILCABCC0020, MPKA0020; Honeywell F25A/F100/F150E/F200E series; Lennox HCC20-28; Trion Air Bear/Supreme 2000 |