210 Replacement Filter for AprilAire,MERV 11,20x25x4 Air Filter (Pack of 2) | 210 Air Filter Replacement, The Only Mag-netic Filter, Quick Install, 100%Compatible with AprilAire Whole-House Air Purifiers

COMPATIBLE MODELS​：Perfectly compatible with AprilAire whole-house air purifiers, including Models: 1210, 1620, 2210, 2216, 3210, 4200, 2120 (with Upgrade Kit 1213), 2200 (with Upgrade Kit 1213), UV12, and UV22, Note:Not recommended for horizontally‑installed units; for vertically‑installed units only

UNIQUE MAG-NETIC END CAP DESIGN (PATENT PENDING)​：Our Model 210 replacement filter features an integrated mag-netic design, with four mag-nets precision-embedded into both the top and bottom plates to create a completely flush surface with zero protrusion, enabling fast, tool-free installation and broad compatibility while ensuring the filter attaches securely and aligns perfectly with your equipment; compared to the original filter, total installation time is dramatically reduced to just 30 seconds

PROFESSIONAL-GRADE EFFICIENT FILTRATION​：Crafted from premium synthetic media, our Model 210 replacement filter utilizes advanced filtration technology to effectively capture airborne particles such as dust and pet dander, delivering low airflow resistance and high dust-holding capacity to maintain peak filtration efficiency, optimize HVAC performance, and significantly improve overall indoor air quality

WIDE-RANGING APPLICATIONS​. Designed for versatile use, our replacement filter reliably supplies clean, fresh air to residences, offices, schools, hospitals, and various commercial venues, making it an ideal choice for building healthier indoor environments across a wide range of settings

QUICK & EASY INSTALLATION​. Installation is straightforward and hassle-free: simply power off your HVAC system, remove the old filter, unpack the new one, and slide it into position following the included instructions, making sure the arrow on the filter frame points in the direction of airflow to ensure proper operation