Designed to optimize the performance of 1 inch residential units14x20x17B1-1420-11-6 – BestAir Furnace Filters, Humidifier Filters & Wicks and Compactor Trash Bags – Made in USA

14x20x1, Furnace Filter, MERV 11
14X20X1 Pleated Filter Merv 11

B1-1420-11-6 | BestAir® 14x20x1 Pleated Filter MERV 11

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