Menu

We independently review everything we recommend. When you buy through our links, we may earn a commission at no additional cost to you. Learn more ›

Best Filtrete Furnaces

High-performance Filtrete furnace air filters with MERV 11-12 ratings for superior allergen capture and clean indoor air. Available in various sizes and packs for HVAC systems.

4 products

Select a Product

Click on a product from the list to view its details.

PRIME

ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Last update on . Affiliate links, prices, images, product titles, and highlights from Amazon Product Advertising API.

Pros

Cons

Key Features

User Reviews

Your review will be visible after approval.

Loading reviews...
Filtrete 20x25x1 MERV 11 MPR 1000 Furnace Air Filter 2-Pack - 3-Month Pleated Allergen Defense for Cleaner Air

This 2-pack of Filtrete 20x25x1 MERV 11 MPR 1000 pleated furnace filters uses 3-in-1 electrostatic technology to capture microparticles like pet dander, smoke, pollen, and dust. Allergy sufferers and pet owners should buy it for certified asthma-friendly filtration lasting up to 3 months.

  • Transforms your home into a sanctuary by trapping allergens, pet dander, and smoke for fresher air
  • 3-in-1 technology pulls in and captures countless microparticles while allowing clean air to flow
  • Certified asthma and allergy-friendly to reduce irritants and improve breathing comfort
  • Lasts up to 3 months, minimizing replacement hassle for consistent performance
  • Filtrete Smart App sends reminders to ensure optimal HVAC efficiency

Superior MERV 11 and MPR 1000 ratings for effective allergen and particle capture. Pleated design enhances airflow and filtration surface area. Convenient 2-pack with 3-month lifespan reduces buying frequency.

Actual size (19.688 x 24.688 x 0.84 in) slightly smaller than nominal dimensions. Requires replacement every 90 days to avoid reduced airflow. Higher MERV rating may slightly increase system energy use.

Filtrete 16x25x4 MPR 1550 MERV 12 Furnace Air Filter 2-Pack - Asthma & Allergy Certified, Fits Honeywell & Lennox (15.88x24.56x4.31 Actual)

This Filtrete 16x25x4 MPR 1550 MERV 12 air filter uses 3-in-1 technology to capture up to 50% of small particles like bacteria, viruses, pet dander, and pollen in compatible HVAC systems. Allergy sufferers and pet owners with Honeywell or Lennox units should buy it for certified asthma and allergy-friendly air purification lasting up to 12 months.

  • Captures 50% of small particles like bacteria, viruses, and pet dander for cleaner indoor air
  • Certified asthma and allergy-friendly to reduce allergens and improve breathing
  • Fits Honeywell, Lennox, Carrier, Bryant, and TrionAirBear systems seamlessly
  • Exclusive 3-in-1 electrostatic technology traps lint, pollen, dust, smoke, and smog
  • Lasts up to 12 months for fewer changes and consistent performance

High MPR 1550 and MERV 12 ratings excel at microparticle capture. Electrostatic design pulls in and holds allergens effectively. Precise fit for popular media air cleaners enhances airflow.

Actual size (15.88x24.56x4.31 in) differs from nominal 16x25x4, so verify compatibility. Annual replacement required for peak performance in high-pollution homes. Best suited to specific brands, may not fit all HVAC systems.

Filtrete 16x25x1 MERV 11 MPR 1000 Furnace Air Filter 4-Pack - Electrostatic Allergen Defense for Cleaner Home Air

Filtrete 16x25x1 MERV 11 MPR 1000 air filters (4-pack) use electrostatic 3-in-1 technology to capture microparticles like pet dander, smoke, dust, and pollen. Homeowners with allergies or pets should buy these for superior indoor air quality and HVAC efficiency.

  • Transforms your home into a sanctuary by trapping allergens, dust, and pet dander for fresher air
  • Electrostatic fibers act like magnets to capture smoke, smog, and microparticles non-electrostatic filters miss
  • MERV 11 rating filters countless particles while maintaining strong HVAC airflow and efficiency
  • Lasts up to 3 months, reducing replacement hassle and keeping your system running smoothly
  • Certified asthma & allergy-friendly to help reduce triggers for sensitive households

Superior capture of allergens, lint, pollen, and bacteria compared to basic filters. Improves HVAC efficiency by reducing motor strain and dirt buildup. Convenient 4-pack with precise fit for standard furnace and AC systems.

Actual size (15.69 x 24.69 x 0.81 in) is slightly smaller than nominal dimensions. Filter lifespan varies by home conditions like pet hair or dust levels. Not ideal for systems needing ultra-high MERV 13+ filtration.

Filtrete 20x25x5 MPR 1000 MERV 11 Furnace Air Filter 2-Pack for Lennox Systems - Allergen Defense, 12-Month Electrostatic Filter

Filtrete 20x25x5 MPR 1000, MERV 11 air filters in a 2-pack fit Lennox HVAC systems with actual dimensions of 19.63 x 24.75 x 4.31 inches. Their 3-in-1 technology captures twice as many microparticles like pet dander, smoke, and pollen, making them ideal for allergy sufferers seeking certified asthma-friendly air purification lasting up to 12 months.

  • Captures 2X more allergens and microparticles like pet dander, smoke, and pollen for fresher indoor air
  • Certified asthma and allergy-friendly to create a healthier home sanctuary
  • Exclusive 3-in-1 electrostatic technology traps particles while allowing clean air to flow freely
  • 12-month filter life optimizes HVAC performance and reduces frequent changes
  • Perfect fit for Lennox systems with 4.31-inch or thicker media space

High MPR 1000 and MERV 11 ratings excel at fine particle capture. Long-lasting 12-month durability minimizes maintenance. Tailored fit for Lennox devices ensures seamless installation.

Actual size slightly smaller than nominal, verify system compatibility. Designed specifically for 4.31-inch or thicker slots, not universal fit. Requires annual replacement for peak HVAC efficiency.

Welcome to our Filtrete Furnaces category, where you'll find premium air filters designed specifically for furnace systems. These electrostatic pleated filters excel at capturing micro-allergens, dust, and particles, ensuring cleaner air and better HVAC performance for your home. Whether you're maintaining seasonal comfort or addressing allergy concerns, Filtrete delivers reliable filtration that stands out in the HVAC space.

Why Choose Filtrete Furnace Air Filters?

Filtrete, backed by 3M innovation, has built a reputation for high-quality air filtration solutions. Their furnace filters feature advanced electrostatic technology that attracts and traps particles like pollen, pet dander, and smoke more effectively than standard filters. With MERV ratings of 11 or 12 and MPR up to 1550, they balance airflow with superior capture rates, preventing strain on your furnace while improving indoor air quality.

Key factors to consider when shopping include filter size, thickness, MERV/MPR rating, and compatibility. Standard 1-inch filters fit most systems for easy replacement every 3 months, while thicker 4-5 inch models offer extended life and higher efficiency for premium setups like those from Lennox or Honeywell. Use cases range from everyday home maintenance to allergy relief in high-pollen areas or homes with pets.

Comparing Filtrete Furnace Filter Models

Our selection includes four versatile options to match your furnace dimensions and needs. Here's a breakdown to help you decide:

  • 16x25x1 (MERV 11, MPR 1000, 4-Pack): Ideal for standard residential furnaces with actual dimensions of 15.69 x 24.69 x 0.81 inches. This slim 1-inch pleated filter provides Micro Allergen Defense for broad coverage, perfect for budget-conscious users needing multiples.
  • 20x25x1 (MERV 11, MPR 1000, 2-Pack): Slightly larger at 19.688 x 24.688 x 0.84 inches, suited for bigger systems. Offers the same 3-month electrostatic protection in a convenient duo pack.
  • 20x25x5 (MPR 1000, MERV 11, 2-Pack): A thicker 4.31-inch filter (actual 19.63 x 24.75 inches) designed for Lennox devices. Provides deeper pleats for better dust holding and airflow in high-demand environments.
  • 16x25x4 (MPR 1550, MERV 12, 2-Pack): Premium choice with actual size 15.88 x 24.56 x 4.31 inches, certified asthma & allergy friendly. Fits Lennox and Honeywell systems, capturing finer particles for ultimate air purity.

Choose 1-inch filters for quick installs in tight spaces or basic filtration. Opt for 4-5 inch models if your furnace supports them for longer-lasting performance and higher allergen reduction. Always verify actual dimensions against your unit for a snug fit.

What to Look for in Furnace Air Filters

When browsing Furnaces accessories, prioritize MERV ratings: 11 captures common allergens, while 12 handles smaller particles without restricting airflow. MPR (Micro Particle Performance Rating) indicates real-world effectiveness against tiny contaminants. Electrostatic charging enhances capture without frequent changes. For comparisons, Filtrete outperforms basic fiberglass filters and rivals premium brands in Goodman Furnaces setups.

Installation is straightforward—slide out the old filter, note airflow direction, and insert the new one. Regular changes extend furnace life and reduce energy costs. If upgrading your entire system, explore broader Building Supplies or Tools & Home Improvement options.

Frequently Asked Questions

What makes Filtrete filters better than competitors?

Filtrete's electrostatic media and high MPR/MPR ratings provide superior particle capture compared to standard filters, often at similar replacement intervals. They're trusted for consistent quality in demanding HVAC applications.

Which Filtrete model should I choose for my furnace?

Match the size to your unit: 16x25x1 or 20x25x1 for standard 1-inch slots; thicker 4-5 inch for compatible systems like Lennox. Higher MPR 1550 suits allergy sufferers.

Do Filtrete filters fit all furnaces?

Most residential models, with specifics for Lennox and Honeywell. Check actual sizes listed and consult your manual for compatibility.

What is the typical lifespan of these filters?

Designed for 3 months in typical homes, but inspect monthly—replace sooner in dusty or pet-heavy environments for optimal performance.

How does Filtrete compare to other brands?

Filtrete excels in allergen defense over generics, with certifications like asthma & allergy friendly. For alternatives, see AprilAire options.