Made in USA.. 6 Pack. 16x30x1 MERV 11 Pleated AC Furnace Air Filters

Recommended to replace at least every 90 days Manufactured in the USA. Pleat configuration: Formed into aerodynamic, semi-tapered, wedge-shaped pleats expanding its capability to capture contaminants. Improved overall particle size efficiency due to continuous fiber structure and dual-stage electrostatic enhancement which captures an increased amount of smaller particulate than conventional glass media. MERV 11 (Minimum Efficiency Reporting Value) based on ASHRAE Test Standard 52.2-2012 Successful in single filter applications or as improved pre-filter substitutes for disposables, permanent metal filters, or media pad/frame filters. MERV 11 Specifications: Actual Size: 15-3/4 x 29-3/4 x 3/4