Filtrete 18x20x1 AC Furnace Filter – MERV 11, MPR 1000, 6 Pack

Overview

The Filtrete 18x20x1 AC furnace filter, built by 3M, is designed to help reduce the presence of common household particles in your air. This 6-pack features a pleated, 1-inch design that blends strong filtration with steady airflow, helping you maintain a cleaner feel in living spaces while supporting your HVAC system’s efficiency. The filter’s actual size is 17.81 x 19.81 x 0.81 inches, so it’s important to verify fit for your unit.

Three-in-One Filtration and Coverage

Filtrete combines multiple filtration steps into a single filter layer, aiming to attract and trap a range of particles as air passes through. The higher MPR and MERV rating indicate a greater capacity to capture both visible debris and finer particles from the air stream, while still allowing air to move through the filter layer.

• Large particles like lint, pollen, and household dust are captured for a cleaner surface area.
• Smaller, microparticle particles such as pet dander and smoke residues are targeted during filtration.
• Increased particle trapping can contribute to improved air turnover in residential spaces.

What to Expect in Daily Life

Many users notice a perception of fresher air and less visible dust on surfaces. This filter is designed for residential use, aiming to support comfortable living environments without dramatic changes in routine. It also serves as a safeguard for your HVAC system by helping to maintain airflow through the filter as dust accumulates over time.

Maintenance and Smart Reminders

To support consistent performance, replace the filter approximately every 90 days for 1-inch filters. Filtrete offers an easy reminder workflow via a camera-based barcode setup in the Filtrete Smart App, so you can choose a countdown (30, 60, or 90 days) and receive a notification when it’s time to change the filter. This helps simplify upkeep without relying on guesswork.

• Simple, on-device reminders help you stay on top of changes without manual tracking.
• 6-pack convenience provides ongoing supply for multiple replacements across cycles.
• Designed for residential heating and cooling equipment, supporting steady operation.

Fit and Specs

This filter is part of a line that includes MPR 1000, MPR 1200, and MPR 1550 options in various thicknesses to fit different systems. For optimal performance, ensure the 1-inch size matches your furnace or AC frame. The filter is intended for residential use and should be installed according to your HVAC system’s guidelines.

Note: For easy replacement reminders, you can scan the packaging barcode in the Filtrete Smart App and set your preferred replacement interval. While the app offers helpful reminders, results may vary based on home conditions and system usage.