Breathe Fresh, Live Well! 🌱 MERV 11 filtration for superior allergen defense. Electrostatically charged for enhanced particle capture. Recyclable frames for a sustainable home. Fits Rheem, Ruud, and Protech models effortlessly. Lasts 3x longer than standard fiberglass filters. Whole house coverage Eco-friendly materials 95% particle capture The Filterbuy 17.5x21x5 Air Filter MERV 11 Allergen Defense (2-Pack) is designed to enhance your home's air quality by trapping 95% of airborne particles. With a durable, recyclable frame and compatibility with major HVAC brands, these pleated filters provide long-lasting performance and eco-friendly benefits.