Filtrete 18x20x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 17.81 x 19.81 x 0.81)
Brand: Filtrete
Categories: Tools & Home Improvement, Building Supplies, HVAC, Furnace Parts & Accessories, Furnace Filters


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

MERV Rating: 11
Material: ‎Electrostatically charged filter media
Product Dimensions: ‎19.81 x 0.81 x 17.81 inches
Brand: Filtrete
Compatible Devices: Air Conditioner, Furnace
Item Package Quantity: ‎1
Included Components: ‎4-Pack
Batteries Required?: ‎No
Domestic Shipping: Item can be shipped within U.S.
Manufacturer: ‎3M
Item Weight: ‎2.81 pounds
Date First Available: August 12, 2011
ASIN: B005F5D1JC
Color: ‎18x20x1
Item model number: ‎9845-4
Batteries Included?: ‎No
Pattern: ‎Air Filter
Minimum Efficiency Reporting Values (MERV): ‎11
Customer Reviews: 4.8 out of 5 stars 68,394 ratings 4.8 out of 5 stars
Size: ‎4-Pack
Is Discontinued By Manufacturer: ‎No
Warranty Description: ‎Limited Warranty. This product will be free from defects in material and manufacture. User is responsible for determining whether the product is fit for a particular purpose and suitable for user’s application. If this 3M product is defective, your exclusive remedy and 3M’s sole obligation shall be, at 3M’s option, to replace the 3M product or refund the purchase price of the 3M product. This warranty does not cover normal wear and tear, or damage resulting from accident, misuse, alteration or lack of reasonable care.
International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
Part Number: ‎9845-4PK
Style: ‎18x20x1
Country of Origin: ‎Mexico