Filter King 20x35x2 Air Filter 4-Pack - MERV 8 Pleated HVAC Filter

In this review of the Filter King 20x35x2 Air Filter 4-pack, the bottom line is clear: this set is for homeowners who want a reliable, made-in-USA pleated filter that improves indoor air quality without restricting airflow. The reviewer found the single biggest reason to buy is the balance of particle capture and airflow thanks to the MERV 8 rating and pleated design, which noticeably reduced dust in living spaces within a couple of days while fitting standard HVAC slots that accept nominal 20 in x 35 in filters.

Key Features

• MERV 8 rating: Provides effective capture of common airborne particles while maintaining good airflow for typical home A/C and furnace systems.
• Pleated construction: The pleated media increases surface area so the filter traps more dust and extends usable life compared with flat filters.
• 4-pack convenience: Supplied as a set of four so replacements are on hand for regular 30 to 90 day change intervals, reducing trips to buy filters.
• Made in USA: Fully manufactured domestically with an EPA establishment number noted on packaging for buyers who prioritize US-made products.
• Fast installation: A simple open, slide and close design makes swapping filters quick and easy for non-technical homeowners.

Who It's For

This Filter King 4-pack is aimed at homeowners and renters with standard HVAC systems sized for nominal 20 in x 35 in filters who want a mid-grade filer that improves indoor air quality without overly restricting airflow. It suits those who prefer buying several replacements at once and value filters manufactured in the United States.

It is less suitable for households needing very high filtration for severe allergies or smoke exposure, where a higher MERV rating or specialized filtration may be preferable. Also check actual slot dimensions before purchase, since the listed nominal size differs slightly from the actual dimensions.

Pros & Cons

Pros

• Good balance of particle capture and airflow at a MERV 8 level for typical homes.
• Pleated design increases filter surface area and extends service life up to suggested 90 days under light use.
• Pack of four offers value and convenience for routine maintenance cycles.
• Made in the USA with an EPA establishment number for traceable manufacturing.

Cons

• Actual size is 19.5 in x 34.5 in x 1.75 in, so fit can be mixed if HVAC slots expect an exact 20 in x 35 in board.
• Not designed for households that require high MERV levels for severe allergy or medical needs.

Specifications

Nominal size	20 in x 35 in x 2 in
Actual size	19.5 in x 34.5 in x 1.75 in
Pack quantity	4 filters
MERV rating	8
Made in	United States (EPA Establishment 103501-FL-1)
Recommended replacement	Every 30-90 days (depending on use)

Our Verdict

The Filter King 20x35x2 4-pack is a practical, value-oriented choice for most households seeking improved air quality without sacrificing airflow. Its MERV 8 pleated media and made-in-USA construction make it a dependable routine replacement, provided buyers confirm actual filter slot dimensions before ordering.

Frequently Asked Questions

Are these filters truly made in the USA?
Yes, the filters are fully manufactured in the United States and include an EPA establishment number on the product information.

How often should these filters be changed?
Filter King recommends changing filters every 30 to 90 days depending on household conditions; many users find a 60- to 90-day interval acceptable in low-dust homes.

Will a MERV 8 filter impact HVAC airflow?
MERV 8 is designed to trap common particles while maintaining good airflow for standard residential HVAC systems, so most users reported no noticeable reduction in performance.