Filtrete 16x25x4 HVAC Air Filters 2-Pack — MERV 11 (MPR 1000), 4-inch Thick for Improved Airflow

These Filtrete filters, manufactured by 3M, combine a higher-efficiency media with a thick 4.31" frame to fit many furnaces, air conditioners and media air cleaners. With an MPR 1000 and MERV 11 performance level, the filters capture both larger debris like lint and pollen and many smaller airborne particles such as pet dander, smoke and smog. Each pack contains two filters sized slightly under the nominal label — 15.88 x 24.56 x 4.31 inches each — intended for seasonal use up to 12 months depending on conditions.

How do these filters balance particle capture and airflow?

Filtrete’s media is engineered to pull in and trap particles while allowing your HVAC system to move air efficiently. The thicker 4-inch depth increases surface area, which helps maintain lower resistance to airflow compared with thinner filters at similar efficiency levels.

• MERV 11 rating: captures many fine particles without excessive drag on the system.
• MPR 1000: indicates enhanced capture of 0.3–1.0 micron particles compared with lower MPR values.
• 4.31" depth: more media surface area, reducing pressure drop versus thinner filters.
• Designed for HVAC and media air cleaner compatibility to preserve system performance.

What particles and allergens will this Filtrete filter remove?

The filter is intended to reduce airborne contaminants commonly found in homes. It collects a range of particle sizes so you’ll notice fewer visible dust and fewer small irritants that circulate with forced air.

• Large particles: dust, pollen, lint and mold spores.
• Microparticles: pet dander, smoke residues and smog-related particulates.
• Household debris: fibers and general airborne grime that shortens system cleanliness.

How often should I replace the 4-inch Filtrete filter and how can I remember?

For most homes, a single filter can be used up to 12 months, but heavy use, pets, smoking or local air quality may require earlier replacement. Filtrete recommends checking the filter periodically and using reminders to stay on schedule.

• Typical service life: up to 12 months under normal household conditions.
• Shorten interval when you have pets, smokers, or high local pollution.
• Use the Filtrete Smart App to set 90-, 180- or 365-day change reminders.
• Inspect visually every few months to confirm airflow and cleanliness.

Will this filter fit my system and what should I know about sizing?

Each filter’s exact dimensions are 15.88" x 24.56" x 4.31", so verify your unit can accommodate a 4-inch thickness. They are compatible with many media air cleaners and common furnace and AC housings that accept thicker filters.

• Exact size: 15.88 in x 24.56 in x 4.31 in; labeled nominal as 16x25x4.
• Fits systems designed for 4" filters or larger; check clearance before installing.
• Compatible with select Honeywell and Lennox media air cleaner setups.
• Sold as a convenient 2-pack for staggered replacement schedules.

Who this product is for: Homeowners and renters seeking a higher-efficiency, long-life HVAC filter that balances effective particle capture with system airflow. It’s a practical choice for households with pets, seasonal allergies, or moderate urban pollution who want a reliable 12-month option and compatibility with common media air cleaner systems. Choose this Filtrete MERV 11, MPR 1000 two-pack if you want thicker media for better dust-holding capacity and an easy replacement cadence with smart reminders.