Filter King 25x22x1 Air Filter 4-Pack - MERV 8 Pleated Filters

In this review of the Filter King 25x22x1 Air Filter 4-pack, the bottom line is simple: this is a reliable, no-frills replacement filter for homeowners who want consistent particle capture and easy installation without paying a premium. The pack delivers a true pleated MERV 8 filtration performance in an actual size of 25 in x 22 in x 0.75 in, and is fully made in the USA, making it a straightforward choice for routine HVAC maintenance and allergy-conscious households.

Key Features

• MERV 8 rating: Captures common airborne particles such as dust and pollen while maintaining air flow for typical home HVAC systems.
• Made in USA: Fully manufactured in the United States using materials and construction tracked under EPA Establishment Number 103501-FL-1 for consistent build quality.
• Pleated design: The pleats increase surface area to trap more particles and extend the effective life of each filter compared with flat media.
• 90 day potential life: Filters can last up to 90 days depending on household conditions, offering flexibility to replace between 30 and 90 days.
• Fast installation: The simple open, slide and close fit makes swap-outs quick and easy for homeowners performing routine maintenance.

Who It's For

The Filter King 25x22x1 4-pack is best for homeowners and renters with standard 1 in filter slots who want a mid-level MERV 8 solution to reduce dust, pet dander and pollen without restricting airflow. It's a practical choice for seasonal maintenance plans and households that prefer a product made in the United States.

Those with severe allergy or smoke concerns who require higher-efficiency filtration should consider higher MERV or specialty filters designed for finer particles. Also check exact slot tolerances before buying because the actual filter thickness is 0.75 in, and some systems expect a full 1 in panel.

Pros & Cons

Pros

• Good balance of filtration and airflow from the MERV 8 pleated media.
• Manufactured in the USA with traceable establishment number for quality assurance.
• Easy, tool-free installation that most users find quick and straightforward.
• Value pack of four reduces the per-filter replacement cost for routine maintenance.

Cons

• Actual thickness is 0.75 in, so a small number of users report the fit feels slightly wide or thin in some housings.
• Not intended for very fine particle capture like smoke or industrial pollutants compared with higher MERV options.

Specifications

Filter type	MERV 8 pleated air filter
Pack size	4-pack
Nominal size	25 in x 22 in x 1 in
Actual size	25 in x 22 in x 0.75 in
Country of manufacture	Made in USA (EPA Establishment 103501-FL-1)
Recommended replacement	Every 30 to 90 days

Our Verdict

For typical homes and light allergy needs, the Filter King 25x22x1 4-pack is a sensible, cost-effective option that pairs MERV 8 performance with American manufacturing. It installs quickly, traps common household particles, and offers a flexible replacement interval, making it a good value for routine HVAC upkeep.

Frequently Asked Questions

Are these filters true to size?
They are sold as 25 in x 22 in x 1 in nominal size, with an actual thickness of 0.75 in, so most systems accept them but verify slot tolerances before purchase.

How often should I change them?
Filter King recommends changing 1 in filters every 30 to 90 days depending on home conditions; many users find a 60-90 day interval works if dust and pets are minimal.

Do these filters reduce household dust?
Yes, the pleated MERV 8 media captures common dust, pollen and dander and many customers report reduced dust accumulation within a few weeks.