Filtrete 16X20X4 Ac Furnace Air Filter, Mpr, Actual Size 15.88 X 19.88 X 4.31 Filtrete 16x20x4 MPR 1550 Air Filter, made by 3M, helps capture unwanted particles and allergens from your household air to contribute to a clean home environment. Designed with exclusive Filtrete 3-in-1 technology, including a high MPR 1550 and MERV 12 rating, your AC filter will help pull and capture countless microparticles ? such as pet dander, smoke and smog ? while letting cleaner air flow through. This air filter captures up to 54% of small particles (1), like bacteria and particles that carry viruses, to help make your air cleaner. Your Filtrete Filter will also capture large particles, including lint, pollen and household dust. This filter is CERTIFIED asthma and allergy-friendly (2). Use a 12-month deep-pleated 4-inch home HVAC filter in your compatible furnace, air conditioner or HVAC system. Four come in a pack, so keep some for backup, or use them in many areas. For optimal performance of your HVAC system, change your 4-inch furnace filter at least every 12 months. (1) % captured is based on ASHRAE 52.2 testing for 0.3 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing. (2) As outlined in report ASCR: 1246-01. (3) Based on the 2022 Ipsos US Brand Health Study of Residential HVAC Air Filters. Product Features MAKE YOUR HOME YOUR SANCTUARY: 2-pack of 12-month deep-pleated 4? Filtrete 16x20x4 MPR 1550 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 filter?s exact dimensions are 15.88 x 19.88 x 4.31 EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through COUNTLESS MICROPARTICLES: With a 1550 MPR and MERV 12 rating, as well as a 54% small particle capture rate (1), your Filtrete Filter will help capture many microparticles from the air passing through it CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air VERSATILE USES: Works for changing any air filter in your furnace, air conditioner/heating system or HVAC system; for optimal performance, 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 Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!