Arm & Hammer 20x30x1 Air Filter (4-Pack) | Merv 8 | Enhanced Allergen | Pet Fresh Odor Reduction | Contains Pure Baking Soda | HVAC AC Furnace | Made in USA | Actual Size 19.75" x 29.75" x 0.75"

["Reliable Merv 8 filtration infused with baking soda to help reduce odor","Advanced Air Filtration using pleated filter media that filters out dust, pollen, pet dander, and other airborn partices to improve indoor air quality","Strong, durable, reinforced frame construction with moisture-resistant pleats helps the filter maintain its shape and airflow throughout its lifespan.","Easy replacement cycle, for best results replace every 60-90 days or more frequently with pets or high system usage."]