Filtrete 20x20x2 AC Furnace Filter – MERV 11, MPR 1000, Allergen Defense, 4 Pack (Actual 19.5 x 19.5 x 1.75 in)

Overview

Meet Filtrete 20x20x2 AC Furnace Filter, a 4-pack designed to help keep your home's air feel fresher. With a powerful MPR 1000 rating and a MERV 11 designation, this pleated 2-inch filter is built to pull in and trap a broad range of particles as air moves through your furnace or HVAC system.

Designed by 3M, this filter blends protective filtration with enough airflow to support everyday comfort. The product uses Filtrete 3-in-1 technology to attract and capture a wide spectrum of particles while letting cleaner air pass through. The exact dimensions are 19.5 in x 19.5 in x 1.75 in (slightly different from the nominal size), making it a precise fit for many standard 20x20x2 setups.

What you gain with Filtrete 3-in-1 technology

• Up to 2X more microparticle capture compared to MERV-only filtration, thanks to the combined MPR 1000 and MERV 11 design.
• Balanced airflow ensures your heating or cooling system receives cycled air without excessive resistance.
• Effective at capturing large particles like lint, pollen, and mold spores, helping to keep surfaces and indoor air cleaner.

Real‑world use and scenarios

Whether you’re living with pets, dealing with seasonal allergies, or simply want a fresher home environment, this filter offers a practical filtration upgrade. Pet dander, smoke residues, and everyday dust can be drawn into the filter before they circulate back into the living space, while still allowing your HVAC system to operate smoothly.

• Ideal for homes with pets or smoke exposure where cleaner air is a priority.
• Helps reduce visible dust and household allergens in daily living spaces.
• Compatible with furnaces, air conditioners, and most HVAC configurations that use a 20x20x2 filter size.

Maintenance and ongoing care

For optimal performance, replace the filter at least every 90 days. The 4-pack design supports easy seasonal changes, so you can keep replacements on hand when it’s time to refresh your system.

• Use the Filtrete Smart App (iOS or Android) to set reminders at 30, 60, or 90 days.
• Be mindful of environment: homes with more dust or pet activities may benefit from more frequent changes.

Sustainability and certifications

Filtrete products incorporate recycled content and carry third‑party verification. The filter is certified asthma and allergy-friendly and contains a notable share of recycled material, supporting eco-conscious upkeep of your home.