Filtrete 20x20x1 AC Furnace Air Filter MERV 5 - 6-Pack

In this review of the Filtrete 20x20x1 AC Furnace Air Filter, the bottom line is simple: homeowners who want an affordable, easy-to-use pleated filter that captures everyday dust and lint will appreciate this 6-pack. The reviewer found the pack delivers consistent, expected performance for typical household use, improving perceived air cleanliness without dramatic airflow restriction. It is presented as a practical replacement filter for furnaces, air conditioners and HVAC systems that need a 3-month, 1-in pleated option.

Key Features

• 3-in-1 technology: The Filtrete design pulls in and traps lint, household dust and dust mite debris so cleaner air flows through your system.
• MPR 300 and MERV 5: Provides moderate particle capture that helps reduce visible dust and large allergens around living spaces.
• Actual dimensions: The filters measure 19.69 x 19.69 x 0.81 in, which matters when replacing slightly different-than-nominal sized filters in existing frames.
• 6-pack convenience: Six filters in the box let you keep spares on hand or service multiple returns without frequent reordering.
• 3-month pleated life: Designed to be changed roughly every 90 days for optimal performance, making maintenance predictable.
• Smart App reminders: Use the Filtrete Smart App to set 30-, 60- or 90-day reminders so you don't forget to replace the filter.

Who It's For

This filter is best for homeowners and renters with standard HVAC, furnace or air conditioning systems that accept a 20x20x1 style filter and who want a low-effort way to reduce everyday dust and debris. It suits people who prefer a predictable 3-month replacement cycle and those who like having spare filters on hand.

It is not for users seeking high-efficiency allergen or smoke protection; with a MERV 5 / MPR 300 rating it catches larger particles but is not intended for fine particulate removal. Also check your cabinet clearance for the actual sizes listed before purchase to avoid fit issues.

Pros & Cons

Pros

• Good value: six filters provide several replacement cycles or coverage for multiple units.
• Easy installation: pleated, 1-in format fits most standard frames and is simple to swap out.
• Effective on common dust: customers report solid dust collection and fresher indoor air.

Cons

• Fit variation: the actual 19.69 x 19.69 x 0.81 in dimensions can cause alignment issues in some housings that expect nominal sizes.
• Not for fine particles: MERV 5 rating means it will not capture the smallest allergens or smoke as higher-rated filters do.

Specifications

Brand	Filtrete
Model size (actual)	19.69 x 19.69 x 0.81 in
Pack quantity	6-pack
MPR	300
MERV rating	5
Filter type	3-month pleated 1-in electrostatic
Compatible systems	Furnace, air conditioner, HVAC

Our Verdict

The Filtrete 20x20x1 MPR 300 6-pack is a practical, cost-effective choice for routine home HVAC maintenance, offering reliable dust capture and easy, predictable 90-day changes. Buyers who need stronger allergen or smoke filtration should look at higher MERV options, but for general household use this pack represents good value and convenience.

Frequently Asked Questions

How often should I change this filter?
Replace every 90 days for optimal performance, or more often if your home is dusty or you have pets.

Will this fit my 20x20x1 slot?
The actual dimensions are 19.69 x 19.69 x 0.81 in, so double-check your housing if it requires exact nominal sizing.

Can it capture smoke or fine allergens?
No, with a MERV 5 / MPR 300 rating it captures larger particles well but is not designed for fine particle or smoke filtration.