Filter King 13x20x1 Air Filter 3-Pack - MERV 8 Pleated HVAC Filter

In this review of the Filter King 13x20x1 Air Filter 3-Pack, the reviewer recommends it to homeowners and renters who want a reliable, easy-to-install replacement for standard 1 in HVAC slots. The single biggest reason to buy is its balance of particle capture and airflow: the MERV 8 pleated media traps common household dust and allergens while preserving system performance, and the pack of three with an actual thickness of 0.75 in offers a practical supply for scheduled changes.

Key Features

• MERV 8 rating: Provides measurable capture of airborne particles like dust, pollen, and pet dander without significantly restricting airflow in most residential systems.
• Three-pack convenience: Supplies two replacements in addition to the installed filter so users can follow the recommended 30 to 90 day replacement cycle without frequent trips to the store.
• Pleated design: Increased surface area helps extend filter life and improves particle-holding capacity compared with flat-panel filters.
• Made in USA: Fully manufactured domestically with an EPA establishment number, which may matter to buyers who prefer US-made household components.
• Fast installation: Simple open, slide and close setup makes the filters quick to change for homeowners and service technicians alike.

Who It's For

This filter is well suited for families, pet owners, and people with mild seasonal allergies who need reliable removal of common particulates without upgrading to a higher-efficiency filter that might strain older HVAC systems. It is also a good choice for anyone who prefers buying replacements in packs to stay on a regular maintenance schedule.

Those who require hospital-grade filtration, have severe respiratory sensitivities, or need a thicker filter for longer service intervals should look at higher MERV ratings or deeper filter profiles; the 0.75 in actual thickness and MERV 8 are optimized for general household use rather than specialized filtration.

Pros & Cons

Pros

• Good balance of filtration and airflow for typical residential A/C and furnace systems.
• Three-pack format makes recurring maintenance straightforward and convenient.
• Sturdy, pleated construction that customers report fits well and installs easily.

Cons

• Actual thickness is 0.75 in, so buyers should confirm slot sizing before purchase to avoid fit issues.
• Some customers have mixed views on value compared with other options available.

Specifications

Filter Type	Pleated 1 in replacement (actual 0.75 in)
Size	13 in x 20 in (nominal)
Pack Quantity	3
MERV Rating	MERV 8
Country of Manufacture	Made in USA (EPA Establishment 103501-FL-1)
Recommended Replacement	Every 30 - 90 days

Our Verdict

The Filter King 13x20x1 3-Pack is a practical, middle-road choice for homeowners who want better-than-basic filtration without compromising HVAC performance. Its MERV 8 pleated media, three-pack convenience, and domestic manufacture make it good value for routine residential maintenance, provided buyers confirm the slightly under-1 in actual thickness fits their filter slot.

Frequently Asked Questions

How often should these filters be changed?
They recommend changing the 1 in filters every 30 to 90 days depending on usage, pets, and indoor air quality.

Will MERV 8 affect my airflow?
MERV 8 is designed to trap common particulates while preserving airflow in most residential systems, making it a sensible balance for home HVAC units.

Are these made in the United States?
Yes, the product is fully manufactured in the USA and lists an EPA establishment number for production.