Filtrete Allergen Defense Air Filter, 1000 MPR, 20-inch x 25-inch x 1-inch (9803-4)

Product description

• Sold as 1 Each
• FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters
• The higher the MPR, the more microparticles--such as pollen, pet dander and smoke--your filter will capture from the air passing through it
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy
• Good quality product