Furnace Filters
Best 16x24x1 Furnace Filter (2026): 5 Picks Compared
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For a 16x24x1 furnace filter, the Filtrete leads as Best Overall: it pairs MERV 12 with MPR 1500 in a 2-pack of 3-month pleated filters with a Smart App reminder. The Aerostar runner-up pairs MERV 8 with MPR 600 in a 6-pack, and the Simply, REAIR and K&N picks add a 4-pack, a washable filter, and a lifetime warranty.
Starting out? See the main guide: Best Furnace Air Filters
Top picks at a glance
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Best OverallFiltrete 16x24x1 Air Filter9.8 View on Amazon -
9.8 View on Amazon -
Also GreatSimply 16x24x1 Air Filter9.7 View on Amazon -
Also GreatREAIR 16x24x1 Air filter9.4 View on Amazon -
Also GreatK&N 16x24x1 HVAC Furnace Air Filter9.2 View on Amazon
Compare the specs
Ranked on pack size from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | MERV rating | Pack size | Weight | Warranty |
|---|---|---|---|---|
| 1. Filtrete 16x24x1 Air Filter | MERV 12 | 2-pack | — | — |
| 2. Aerostar Air Filter 16x24x1 MERV 8 AC | MERV 8 | 6-pack | — | — |
| 3. Simply 16x24x1 Air Filter | MERV 8 | 4-pack | — | — |
| 4. REAIR 16x24x1 Air filter | MERV 8 | — | — | 5-year |
| 5. K&N 16x24x1 HVAC Furnace Air Filter | MERV 11 | — | — | lifetime |
Filtrete 16x24x1 Air Filter
It pairs MERV 12 with MPR 1500, a 2-pack of 3-month pleated filters, and a Smart App reminder.
- MERV rating: MERV 12
- Pack size: 2-pack
Good for
- Buyers who want a 16x24x1 slot with MERV 12
- Buyers who want a 2-pack for repeat changes
Skip it if
- You want a filter larger than 16x24x1
- You want a MERV figure past 12
The pleated polypropylene filters measure 15.81 x 23.81 x 0.78 actual, and the box holds 2 filters for furnace and air conditioner use. Change them at least once every 90 days, and the Smart App sets 30-, 60- or 90-day reminders. The 3-in-1 technology pulls in and traps particles while letting air flow through.
Aerostar Air Filter 16x24x1 MERV 8 AC
It pairs MERV 8 with MPR 600, a 6-pack, electrostatically charged pleated media, and a 15.75 x 23.75 x 0.75 actual size.
- MERV rating: MERV 8
- Pack size: 6-pack
Good for
- Buyers who want a 16x24x1 slot with MERV 8
- Buyers who want electrostatically charged pleated media
Skip it if
- You want a filter larger than 16x24x1
- You want filtration past 3 months without a change
It fits most standard residential and commercial HVAC systems with a standard 1-inch filter, and it is comparable to MPR 600 and FPR 5 filters. Replacement is every 2 to 3 months.
Simply 16x24x1 Air Filter
It pairs MERV 8 with a 4-pack, a 15.75 x 23.75 x 0.75 actual size, and an installation guide.
- MERV rating: MERV 8
- Pack size: 4-pack
Good for
- Buyers who want a 16x24x1 slot with MERV 8
- Buyers who want a 4-pack for repeat changes
Skip it if
- You want a filter larger than 16x24x1
- You want filtration past 3 months without a change
The pleated filters use a 24-point beverage board with hot-rolled steel wire mesh, and the particle size is 3.0 to 10.0 microns. The box holds 4 filters with an installation guide, and they give up to 3 months of filtration.
REAIR 16x24x1 Air filter
It pairs MERV 8 with a washable, reusable filter, a snap-on frame, and a 5-year warranty.
- MERV rating: MERV 8
- 5-year warranty stated
Good for
- Buyers who want a washable filter for repeat use
- Buyers who want a 5-year warranty on a filter
Skip it if
- You want a disposable filter for one use
- You want a filter larger than 16x24x1
The filter is machine-washable, and the box includes a snap-on frame and a storage case. Wash it every 30 to 60 days, and it carries a 5-year warranty.
K&N 16x24x1 HVAC Furnace Air Filter
It pairs MERV 11 with a washable filter, a lifetime warranty, and direct replacement fit.
- MERV rating: MERV 11
- Lifetime warranty stated
Good for
- Buyers who want a direct replacement for a register
- Buyers who want a lifetime warranty on a filter
Skip it if
- You want a disposable filter for one use
- You want a filter larger than 16x24x1
The washable synthetic filter fits directly into the filter register, and it carries a lifetime warranty. It is built for long-term home HVAC use with a premium design for air filtration.
How to choose
Match the nominal size first
Start with the nominal size your slot takes. All five filters are 16x24x1 nominal, with actual sizes that vary slightly: the Filtrete is 15.81 x 23.81 x 0.78, and the Aerostar and Simply are 15.75 x 23.75 x 0.75. Check the actual size against your slot before ordering, and note the REAIR filter snaps in with its frame.
Understand MERV and MPR
MERV and MPR are two separate scales, so compare MERV figures with MERV figures and MPR figures with MPR figures. The Filtrete is MERV 12 with MPR 1500, the Aerostar is MERV 8 with MPR 600, and the Simply and REAIR are MERV 8, while the K&N is MERV 11. The Filtrete, Aerostar and Simply come in 2-pack, 6-pack and 4-pack sizes for repeat changes.
Plan changes and upkeep
The Filtrete changes at least once every 90 days with a Smart App reminder at 30, 60 or 90 days. The Aerostar replaces every 2 to 3 months, and the Simply gives up to 3 months. The REAIR filter is machine-washable with washing every 30 to 60 days, and the K&N filter is washable with a lifetime warranty.
FAQ
What MERV figures do these filters have?
The Filtrete is MERV 12, the Aerostar, Simply and REAIR are MERV 8, and the K&N is MERV 11.
What size furnace filter do I need?
Check the nominal size for your slot first. The Filtrete is 15.81 x 23.81 x 0.78 actual, and the Aerostar and Simply are 15.75 x 23.75 x 0.75 actual. All five are 16x24x1 nominal.
Which filters are washable and reusable?
The REAIR filter is machine-washable with a snap-on frame and a storage case, and the K&N filter is washable with a lifetime warranty.
When should I change a furnace filter?
The Filtrete changes at least once every 90 days, the Aerostar replaces every 2 to 3 months, and the Simply gives up to 3 months. The REAIR filter washes every 30 to 60 days.
