Meet your customers? indoor air quality needs and supplement your service business with Honeywell?s full line of replacement filters. From media air cleaner replacements, to high performance return grill filters, Honeywell has a wide range of sizes and designs to fit nearly any application - including competitive brand air cleaner models. You can count on Honeywell replacement filters to offer long-lasting, high efficiency performance without compromising airflow. Product Features Include: Honeywell PopUP filters store flat and pop into shape for installation; Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2 1999; Save space on the truck; Less damage during storage; Save time on assembly; So easy you can sell over-the-counter to homeowners without worry of mistakes; Compact shape makes popup easy to ship; No combs, pleat spacers or end caps; Upto 1-year life