Precise Fit: The air filter is compatible with AprilAire models 1210, 1620, 2210, 2216, 3210, 4200, or Space Gard 2200 with upgrade kit. Designed to deliver targeted purification for various spaces with professional-grade performance High-Efficiency Filtration: MERV 13-rated to capture up to 95% of airborne particles such as pet hair and debris. Ideal for everyday or pet households, delivering reliable filtration and cleaner indoor air Precision Sizing: This hvac filter precisely sized at 16 x 28 x 4 inch for a snug, secure fit. Ensures smooth airflow and stable installation, helping optimize system performance and indoor air quality Sturdy & Stable: Pleated design increases surface area for better particle capture and fewer replacements. Reinforced frame and sealed edges-resist deformation over time, reducing maintenance effort Easy to Install: Our ac filter is pop-open design requires no tools or expertise—just unfold and insert. Whether for new units or filter replacements, installation is quick and hassle-free