Aerostar 13x21x1 MERV 11 Pleated Air Filter, Allergy and Pet Dander Protection (6 Pack), Actual Size: 12.88x21.5x0.75

Aerostar 13x21 1/2x1 MERV 11 Pleated Air Filters (Actual Size: 12 7/8" x 21 1/2" x 3/4") - 6 Pack. MERV 11 filters are comparable to MPR 1000-1200 and FPR 7. Alternate Part Numbers: KFAFK0112SML Fits HVAC Unit Models: Carrier: 018/024, FV4, FK4, FC4, FB4, FA4, FH4, FA4ANF024, FA4BNC024, FA4BNF024, FB4ANF024, FB4BNF024, FC4CNF024000AAAA, FX4CNF018 (1.5 - 2 Tons), FV4, FK4, FC4, FB4, FA4, FH4, PF1MNC018, PF1MNC019 (1.5 - 2 Tons). Designed for superior filtration efficiency, these filters are made with electrostatically charged synthetic material that draws and captures allergens between 1-3 microns, including lint, dust mites, spores, pollen, pet dander, fine dust, and smoke. Aerostar filters are a simple and cost effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms. They also improve the efficiency of your HVAC unit and therefore reduce maintenance and utility costs, by removing dirt and reducing strain on the motor. For best results, change the filter every 60 to 90 days but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest. Compatible with furnaces and AC units.

• EASY INSTALLATION, UNIVERSAL FIT: 13x21x1 replacement air filter for furnace, AC, and HVAC systems. Fits Carrier, Bryant, Trane, Lennox, Rheem, Goodman, York, Ruud, Honeywell. Nominal Size: 13x21x1 | Actual Size: 12.88x21.5x0.75. Comparable to MPR 1000 and FPR 7
• MERV 11 FILTRATION (MPR 1000 / FPR 7): Captures 95% of airborne particles including dust, pollen, pet hair, pet dander, mold spores, lint, and dust mites. Effective allergy and asthma relief for homes with pets.
• ELECTROSTATICALLY CHARGED PLEATED DESIGN: Premium electrostatic filter media attracts and captures microscopic particles more effectively than standard fiberglass. Deep pleats maximize surface area for superior filtration with low air flow resistance, reducing energy costs.
• LONG-LASTING 6-PACK VALUE: Heavy-duty moisture-resistant frame with reinforced pleats prevents filter collapse and air bypass. Each filter provides 90 days of cleaner, healthier air. Replace every 3 months, or every 30 days during peak summer and winter for optimal performance.
• PROUDLY MADE IN THE USA: Every Aerostar air filter is manufactured with premium materials in American facilities under strict quality control standards. Meets U.S. air quality and safety compliance requirements. Eco-friendly, sustainable production supporting American jobs and the domestic economy.