Aerostar 14x18x1 MERV 11 Air Filter, 4 Pack Set of HVAC Furnace Filters, Electrostatic MPR 1000-1200 & FPR 7 (Actual Size: 13 3/4 x 17 3/4 x 3/4 inches)

The Aerostar 14x18x1 MERV 11 Pleated Air Filter (actual size: 13 3/4 x 17 3/4 x 3/4 inches) delivers high-efficiency filtration for cleaner, healthier indoor air. Designed for use in residential and commercial HVAC systems, this premium furnace and AC filter features a MERV 11 rating, comparable to MPR 1000-1200 and FPR 7, to capture particles as small as 1.0-3.0 microns. Not only that, but by buying in a multi-pack, you can rest assured that you always have a new filter on hand to make swapping filters out a breeze. These filters are compatible with most standard sized units but for the best fit, we recommend measuring your unit directly or obtaining the actual size from your current filter and to ensure you point the arrows in the direction of the unit for a seamless install.

• UNIVERSAL REPLACEMENT FILTER: The 14x18x1 air filter measures 13 3/4 x 17 3/4 x 3/4 in to seamlessly fit into most HVAC systems, air conditioners & furnaces alike. For best fit, measure your current unit to confirm compatibility
• WIDE COMPATIBILITY: Comparable to MPR 1000 & FPR 7, this filter fits seamlessly into most brands systems and has a pro MERV 11 rating to filter out microscopic particles to promote clean and fresh indoor air quality
• MAXIMUM PERFORMANCE: For optimal performance, change filters every 60 to 90 days but increase frequency to 30 days during peak summer & winter months to keep your system running efficiently and to reduce unwanted strain
• ELECTROSTATICALLY CHARGED: Our filters contain 100% synthetic electrostatic media for high efficiency with low air flow resistance, making these a cost-effective step towards promoting a healthy home environment
• MADE IN USA: Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive everyday