Filtrete 18x20x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 6-Pack (exact dimensions 17.81 x 19.81 x 0.81)

When the lifespan is up, you’ll get a notification to change your filter. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. Sign-up for a filter change reminder program that works for you! FOR RESIDENTIAL use only CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. filters A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. and 5 in. filters, and at least every 12 months for 4 in. thick air filters FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. slim fit and 5in. , 4in. home air filters for your furnace, air conditioner or HVAC system DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog 1000 MPR has a rating of MERV 11 The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it FIND YOUR SIZE: 1000 MPR available in 4in. OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in