Filtrete 18x20x1 AC Furnace Filter – MPR 700 (MERV 8) 4-Pack | Actual Size 17.81 x 19.81 x 0.81 in

Better air for every room

Meet Filtrete 18x20x1 AC Furnace Filter, a 4-pack designed to simplify keeping your home's air clean. The electrostatically charged pleated media welcomes airflow while drawing in and trapping particles like lint, pollen, dust, and pet dander as air cycles through your HVAC system. With each pass, your indoor air can feel a touch fresher, especially after busy days with kids, pets, or seasonal allergies. The filter's MPR 700 rating aligns with MERV 8 performance, meaning it’s built to capture a broad range of particle sizes without overly restricting airflow.

Key benefits at a glance

• Electrostatic attraction helps pull particles from the air.
• Captures pollen, dust, lint, and pet dander with efficiency.
• 3M Filtrete 3-in-1 technology blends particle capture with steady airflow.
• High-performance rating (MPR 700 / MERV 8) for better air quality in typical homes.
• Four filters in one convenient pack, with a 3-month replacement cycle per filter.
• Actual size 17.81 x 19.81 x 0.81 in ensures compatibility with most 18x20x1 frames.

Designed for real life, these filters are easy to install and replace. The Filtrete brand notes that changing your filter regularly helps maintain HVAC efficiency and indoor air quality. You might notice a difference when you stand by the vent: air feels lighter, and the room’s atmosphere can feel crisper on high-traffic days or during allergy season.

How Filtrete helps in daily routines

• Standard 3-month pleated filtration balances performance and cost for busy households.
• The included 4-pack reduces frequent shopping trips and keeps extras ready for quick swaps.
• Filtrete’s unique 3-in-1 technology traps particles while allowing clean air to flow through your system.
• In-Home convenience: use the Filtrete Smart App to barcode-scan and set replacement countdowns (30/60/90 days) and receive timely reminders.

What you get is a filtration solution that supports a comfortable living environment without promising specific outcomes. The combination of strong particle capture and reliable airflow can support breathable air through everyday activities—from cooking smells to pet dander and seasonal pollen.

What’s included

• 4-pack Filtrete 18x20x1 filters
• Each filter features a 3-month replacement cycle
• Compact packaging for easy storage and shelf-friendly organization