The WEB Plus 20 in. x 25 in. x 1 in. Adjustable FPR 4 Air Filter captures microscopic airborne particles including pollen, mold, smoke and dust. It can last up to 10 years with the proper care.
- Filter Performance Rating (FPR) of 4
- Adjustable design allows the filter to fit sizes from 14 in. x 20 in. x 1 in. to 20 in. x 25 in. x 1 in.
- Electrostatically charged filter captures microscopic airborne particles in the home
- Lasts up to 10 years
- Filters dust, mold, pollen and smoke