Filtrete 18x20x1 Air Filter MPR 1000 MERV 11, Allergen Defense, 6-Pack exact dimensions 17.81x19.81x0.81

<p>Opt for a Filtrete Allergen DefenseAir Filter to transform your central heating and cooling system into a whole-home air filtration operation. This no-nonsense filter helps capture varying sizes of particles, from the large lint, pollen, dust and pet dander to the microscopic smoke and smog.</p>

• OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. 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: MPR 1000, MPR 1200 and MPR 1550 available in 4 in., 4 in. slim fit and 5 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. filters, and at least every 12 months for 4 in. and 5 in. filters