Filtrete 18x20x1 Air Filter, MERV 11 MPR 1000, 4 Pack

Improve your home's indoor air quality with Filtrete 18x20x1 MPR 1000 Micro Allergen Defense Air Filters. Designed for residential furnaces, air conditioners, and HVAC systems, these pleated electrostatic filters help capture unwanted airborne particles while maintaining reliable airflow.

Featuring Filtrete 3-in-1 Technology, the MPR 1000 and MERV 11 filtration helps capture microparticles such as pet dander, smoke, and smog, along with larger particles including pollen, household dust, and lint.

Each filter is designed for up to 3 months of use, making this 4-pack a convenient supply for year-round HVAC filter maintenance.

Key Features

• Genuine Filtrete HVAC air filters
• Nominal size: 18 x 20 x 1 inches
• Actual size: approximately 17.68 x 19.68 x 0.81 inches
• MERV 11 filtration rating
• MPR 1000 performance rating
• Filtrete 3-in-1 Technology
• Electrostatic pleated filter design
• Helps capture pet dander, smoke, and smog
• Captures larger particles such as pollen, household dust, and lint
• Designed for furnaces, air conditioners, and residential HVAC systems
• Up to 3 months of use per filter
• Includes 4 HVAC filters

Specifications

What's Included

4 Filtrete 18x20x1 MPR 1000 MERV 11 HVAC Air Filters

Recommended Replacement

For optimal HVAC performance, replace the filter at least every 90 days. Replacement frequency will vary depending on household conditions, pets, indoor air quality, and HVAC usage.

Important Sizing Information

18x20x1 is the nominal size. The actual filter dimensions for this listing are approximately 17.68 x 19.68 x 0.81 inches.

Check the dimensions printed on your existing HVAC filter before ordering to ensure the correct fit.