2 Pack 513 Replacement Filter,MERV 13 31x28x4,Compatible with AprilAire Whole House Air Purifiers 1510, 2516

‌Unique Pulley Design(Patented products)：With the unique pulley design, installation is as easy as 1-2-3. Unpack. Slide in. Close the door. Done. No complicated assembly, no cardboard or metal reinforcements and no tools required.Each filter contains 12 pulleys, a design that greatly simplifies your installation process compared to traditional filters. Perfect Compatibility：This MERV 13 filter is Compatible with AprilAire Purifier Model: 1510, 2516, Nominal size: 31"x28"x4". Superior Performance：The BETTFILTER MERV 13 synthetic fiber filter outperforms standard fiberglass filters and adopts the latest in filtration technology to allow for low air flow resistance while maintaining the highest grade level of filtration. Cleaner Air Everywhere: Our filters can capture dust and pet dander in homes, offices, schools, hospitals, and commercial spaces, promoting a healthier living environment with clean and fresh indoor air. Value Package：Package includes 2 Pack 513 MERV13 Replacement Filter, Installation is easy, no tools are required. Changing the Filter regularly helps to extend the life of the air purifier, saving you money while improving filtration.