The AprilAire 201 Replacement Filter is specifically designed for the Aprilaire Whole House Air Purifier. It features a MERV rating of 10, indicating its high level of filtration efficiency. Made with bonded glass fiber material, this pleated filter is equipped with electrostatic filtration technology to capture airborne particles effectively. With its abrasion-resistant design and synthetic filter media, this filter ensures long-lasting performance and clean air circulation for your home. Perfect for keeping your indoor air quality pristine, this filter is a reliable choice for any HVAC system.

Box opened to confirm parts and take pics.  2 pack