Filtrete 9845-4 18x20x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 17.81 x 19.81 x 0.81)

• 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

Product Dimensions:

19.80 x 0.80 x 17.80 in

2.80 lbs

Shipping Dimensions:

20.80 x 1.80 x 18.80 in