MAKE YOUR HOME YOUR SANCTUARY: 4-pack of 3-month pleated 1 Filtrete 18x24x1 MPR 1000 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment | DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filters exact dimensions are 17.81 x 23.81 x 0.81 | EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through | COUNTLESS PARTICLES: With a 1000 MPR and MERV 11 rating, your air filter will help capture many microparticles from the air passing through it | VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system | CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days | SUBSCRIBE AND SAVE: On your first order, simply click on Subscribe and Save" to set up your delivery schedule and save up to 10% on your orders

Filtrete 18x24x1 MPR 1000 Air Filter, made by 3M, helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment. Designed with exclusive Filtrete 3-in-1 technology, including an MPR 1000 and MERV 11 rating, your AC filter will help pull and capture countless microparticles such as pet dander, smoke and smog while letting cleaner air flow through. Your Filtrete Filter will also capture large particles, including lint, pollen, mold spores and household dust. Use a 3-month pleated 1-inch home HVAC filter in your furnace, air conditioner or HVAC system. Four come in a pack, so keep some filters as backup, or use them in multiple areas. For optimal performance of your heating and cooling system or HVAC system, change your furnace filter at least every 90 days.(1) Based on the 2022 Ipsos US Brand Health Study of Residential HVAC Air Filters.