Aerostar 16x25x4 MERV 11 Pleated Air Filter, 2 Pack Set of HVAC Furnace Filters, Electrostatic MPR 1000-1200 & FPR 7, Made in USA

• Nominal size: 16x25x4; Actual size: 15 1/2" x 24 1/2" x 3 3/4"; This MERV 11 filter is comparable with MPR 1000, MPR 1200 & FPR 7.
• Designed to filter microscopic particles to promote clean and fresh indoor air quality
• Simple to install and a cost-effective step towards a healthier home environment. Replace 3"-5" filters every 3-6 months.
• 100% synthetic electrostatic media for high efficiency with low air flow resistance
• Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

Aerostar 16x25x4 MERV 11 filters are comparable to MPR 1000, MPR 1200 and FPR 7. Designed for superior filtration efficiency, these filters are made with electrostatically charged synthetic material that removes particles between 0.3 - 1.0 microns. Aerostar filters are a simple and cost effective step towards a healthier home environment. 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.