Filtrete 20x20x2 AC Furnace Air Filter, MPR 100, Micro Allergen Defense, 4 Pack (exact dimensions 19.5 x 19.5 x 1.75)
- Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1" home air filters for your furnace, air conditioner, or HVAC system.
- Exclusive Filtrete Brand 3-in-1 technology from 3M traps unwanted air particles, letting cleaner air flow through.
- Filtrete 1000 MPR has a rating of MERV 11.
- 1000 and 1200 MPR also available in 4”, 4” slim fit and 5” 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” filters, and at least every 12 months for 4” and 5” filters.
- 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.