Filter King 17.5x27x1 Air Filter 6-Pack - MERV 8 Pleated HVAC Filters

In this review the Filter King 17.5x27x1 Air Filter 6-pack is examined for homeowners and renters who need a reliable, mid-efficiency replacement for 1 inch HVAC systems. The bottom line: these are straightforward MERV 8 pleated filters that balance particle capture and airflow, and the six-pack format makes them a practical choice for routine replacement. They are notable for being fully made in the USA and for offering a simple install process that most people can complete without tools.

Key Features

• MERV 8 rating: Traps common airborne particles like dust and pollen while preserving airflow for A/C and furnace systems.
• Pleated design: Increased surface area captures more dirt and extends service life compared with flat filters.
• Six-pack supply: Provides multiple replacement intervals so users can change filters regularly without repeated purchases.
• Made in USA: Fully manufactured domestically with EPA establishment information noted, which can reassure buyers about origin and construction quality.
• Actual size note: Labeled 17.5 in x 27 in x 1 in with an actual thickness of 0.75 in, which matters when verifying fit in certain housings.
• Easy installation: Open, slide and close design makes swapping filters quick and accessible for most householders.

Who It's For

This pack is best for homeowners and renters using standard 1 in HVAC filter slots who want balanced filtration without restricting airflow. It's a practical choice for people who change filters every 30 to 90 days and prefer buying replacements in bulk to avoid frequent ordering.

Those needing higher-efficiency filtration for asthma, severe allergies, or smoke removal should look for a higher MERV rating. Also check the physical thickness in your unit, since the actual thickness is 0.75 in and may differ from some labeled slots that expect a full 1 in depth.

Pros & Cons

Pros

• Good balance of filtration and airflow thanks to the MERV 8 pleated media.
• Six-pack format offers strong value and reduces the hassle of frequent repurchasing.
• Manufactured in the USA, which supports consistent build quality and traceability.
• Simple open-slide-close installation that most people can do quickly.

Cons

• Actual thickness of 0.75 in can cause mixed fit feedback for users expecting a full 1 in thickness.
• Not intended for high-efficiency needs like medical-grade or smoke filtration.

Specifications

Brand	Filter King
Pack size	6-pack
Rated MERV	8
Labeled size	17.5 in x 27 in x 1 in
Actual size	17.5 in x 27 in x 0.75 in
Made in	USA (EPA Establishment 103501-FL-1)
Recommended change interval	30-90 days

Our Verdict

The Filter King 17.5x27x1 6-pack is a sensible, value-oriented choice for routine HVAC maintenance when moderate particle control and unrestricted airflow are the priority. Homeowners who want dependable, domestically made filters at a reasonable price will find these a good fit, while those requiring deeper filtration should consider higher MERV options.

Frequently Asked Questions

Are these filters true to the labeled size?
They are labeled as 17.5 in x 27 in x 1 in but the actual thickness is 0.75 in, so buyers should confirm fit in their filter slot before ordering.

How often should these filters be changed?
Filter King recommends changing 1 in filters every 30 to 90 days depending on use and indoor air conditions.

Will these filters restrict airflow?
The pleated MERV 8 media is designed to capture particles without significantly impacting airflow for typical residential A/C and furnace systems.