20x20x1 Furnace Filter: House Pleated HVAC AC Air Filters Replacement - Actual Size: 19.7x19.7x0.9 Inches - MERV 11

To obtain high-quality air, please replace the filter every 60-90 days. If the furnace, air conditioner, heat pump, or HVAC system is fully turned on 24 hours a day, the replacement cycle needs to be shortened to 30 days.

• WIDE COMPATIBILITY: This nominal size 20x20x1 replacement air filter for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.7" x 19.7" x 0.9");
• MERV 11 SYNTHETIC GRADE MEDIA: It si comparable with MPR 1000-1200 or FPR 7. It can filter various small particles such as cotton wool, hair, spores, pollen, pet dander, fine dust, and oil fumes;
• PATENT DESIGN WITH FOLDABLE AND RETRACTABLE FEATURES: This means that it will save you more logistics costs and smaller storage space for backup replacement air filters. The plastic frame will not be affected by moisture and rot, while providing greater stability and durability. The buckle design is simple and easy to use;
• 100% ELECTROSTATIC FITRATION MEDIUM: Better adsorption efficiency and larger dust holding capacity, while having lower airflow resistance. It is a preferred choice for households, property management, hotels, and others with higher requirements for air quality;
• SATISFACTION GUARANTEED: 30 days without risk refund guarantee and a 12-month warranty. If you have any questions about the product, please feel free to contact us. Fast service response within 24 hours. We always strive to achieve 100% customer satisfaction.