Why it matters
The Honeywell MERV 12 4-inch Furnace Filter is a pleated furnace and air conditioner filter rated MERV 12.
MERV 12 catches a larger share of fine particles than MERV 11, which suits allergy households whose system handles a denser filter.
Deep pleated filters hold several times the media of a 1-inch filter, so they run with less resistance and last longer.
As general guidance, check a 1-inch filter monthly and change it every one to three months; deeper 4- and 5-inch filters usually last six to twelve months.
This listing is the 20x25x4 size; order by the size printed on your old filter's frame.
The Honeywell listing names 3 filters per box.
Compared with the Honeywell MERV 13 Furnace Filter: MERV rating 12 here vs 13.
Who it's for, and who should skip it
Good fit if
- Allergy households
- Homes that change filters on schedule
Look elsewhere if
- Systems that whistle or short-cycle with denser filters
Pros and cons
Pros
- MERV 12
Cons
- Measure your slot: nominal and actual sizes differ
Limitations to weigh
- Specifications are the maker's or seller's own figures; check fit against your equipment's model number and the actual size.
Specifications
The bracket shows where each figure comes from.
| Model number | CF200A1016-3PKAM | Retailer |
|---|---|---|
| MERV rating | 12 | Retailer |
Alternatives worth comparing
More hvac and furnace filters we cover
- Nordic Pure MERV 12 1-inch Carbon Furnace Filter
- True Blue Allergen MERV 11 Air Filter
- Amazon Basics MERV 11 1-inch Furnace Filter
- Aprilaire MERV 11 Furnace Filter
- Nordic Pure Pleated MERV 13 Air Filter
All hvac and furnace filters, compared in one table · Every Honeywell product we cover
Final verdict
A solid choice for allergy households. Confirm the model it fits before ordering.
Where to buy
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