24.5x23.5x1 Air Filter 4-Pack MERV 8 - Made in USA

In this review the Filter King 24.5x23.5x1 air filter 4-pack is judged for homeowners with standard A/C and furnace systems who want a balance of particle capture and airflow. The single biggest reason to consider these filters is the combination of a MERV 8 pleated design and an American-made build that captures everyday dust and allergens without noticeably restricting home airflow. Reviewers who value straightforward installation and a clear replacement schedule will find these filters practical and reliable.

Key Features

• MERV 8 rating: Provides effective capture of common airborne particles such as dust, pollen, and pet dander while maintaining adequate airflow for most residential HVAC systems.
• Pleated construction: The pleated media increases surface area to trap more particles and extends the usable life compared with flat-panel filters.
• Actual size listing: The nominal size is 24.5 in x 23.5 in x 1 in with an actual thickness of 0.75 in, helping buyers confirm fit before purchase.
• Made in USA: Fully manufactured in the United States under EPA establishment number 103501-FL-1, indicating domestic production and consistent quality control.
• Easy installation: The filters install simply with an open, slide and close motion, making filter changes quick for most homeowners.
• Replacement window: Rated for up to 90 days of service depending on household conditions, giving flexibility between 30 to 90 day replacement intervals.

Who It's For

This 4-pack is ideal for homeowners and renters with 1 in filter slots who need a practical, mid-level filtration option that reduces dust and common allergens without the cost or airflow tradeoffs of higher MERV filters. It suits families with pets or light allergy concerns who change filters on a seasonal basis and appreciate straightforward, domestic manufacturing.

Those who require hospital-grade filtration, very high particle removal, or who have systems that specify higher than MERV 8 should look elsewhere. Also verify the slightly reduced actual thickness of 0.75 in if your return grill requires a strict 1 in depth; some customers mentioned minor fit variation.

Pros & Cons

Pros

• Good balance of particle capture and airflow thanks to the MERV 8 pleated media.
• Made in the USA with identifiable EPA establishment number for traceability.
• Simple, tool-free installation and a clear 30 to 90 day replacement guideline.
• Value-oriented 4-pack that reduces household dust and performs as expected.

Cons

• Actual thickness is 0.75 in rather than a full 1 in, which may affect fit in some tight frames.
• Durability impressions vary among users; heavy dust environments may require more frequent changes than the advertised maximum.

Specifications

Nominal Size	24.5 in x 23.5 in x 1 in
Actual Size	24.5 in x 23.5 in x 0.75 in
MERV Rating	MERV 8
Pack Quantity	4-Pack
Country of Manufacture	Made in USA (EPA Establishment 103501-FL-1)
Recommended Replacement	Every 30 to 90 days (use depends on household conditions)

Our Verdict

The Filter King 24.5x23.5x1 MERV 8 4-pack is a sensible, value-focused choice for most homes with standard HVAC systems. It captures everyday dust and allergens effectively, installs easily, and is backed by domestic manufacturing. Buyers should confirm the 0.75 in actual thickness against their return grill and expect to replace the filters more often in dusty or pet-heavy homes, but for routine maintenance this set delivers reliable performance and good value.

Frequently Asked Questions

Are these filters true to size?
They are listed as 24.5 in x 23.5 in x 1 in nominal, but the actual thickness is 0.75 in, so check your filter slot depth before ordering.

How often should I change them?
Filter King recommends changing 1 in filters every 30 to 90 days depending on household conditions; heavy dust or pets typically means closer to 30 days.

Will these restrict airflow?
With a MERV 8 rating and pleated design they balance capture and airflow for most residential systems, but very sensitive HVAC setups should consult system specs.