Keep your furnace running smoothly with the Filtrete™ Ultrafine Particle Reduction Filter MPR 2800 2PK. Measuring 16 inches by 20 inches by 1 inch, this air filter is designed to remove fine particles and pollutants from the air in your home. With a MERV rating of 14, it's perfect for use in furnaces and other heating systems.The Filtrete™ Ultrafine Particle Reduction Filter MPR 2800 2PK is made by a trusted brand and comes in a pack of two. It's easy to install and is a great addition to any home furnace. Improve the air quality in your home with this high-quality air filter.