Improve your home’s air system performance with the Filtrete 16x20x4 MERV 12 Air Filter with MPR 1550. Engineered by 3M, this high-efficiency electrostatic pleated filter is designed to capture a wide range of airborne particles that pass through your HVAC system while supporting consistent airflow. The deep 4-inch pleat structure provides extended use, with recommended replacement approximately every 12 months depending on system operation and environmental conditions. Built with exclusive Filtrete 3-in-1 technology, this residential air filter helps trap both large and microscopic particles such as dust, lint, pollen, pet dander, and smoke. Its MERV 12 rating reflects strong filtration performance commonly preferred by homeowners seeking a balance between filtration and airflow efficiency. Designed to fit select Honeywell®, Carrier®, and Lennox® media air cleaners, this filter offers dependable compatibility for many home systems. Exact dimensions measure approximately 15.75 inches x 19.75 inches x 4.31 inches to ensure a precise installation. For added convenience, the Filtrete Smart App allows users to set replacement reminders, helping maintain optimal HVAC function year-round. Whether updating your seasonal maintenance routine or proactively supporting cleaner indoor air, this premium furnace and AC filter delivers trusted performance from one of the most recognized brands in air filtration.