Nominal Size 18 x 22 x 1. Actual Size 17.5 x 21.5 x 0.75
Each filter lasts up to 3 months
Uniform pleat shape enhances dust holding capacity and maximizes air flow
Supercharged pleated panel filtering media ideally suited for capturing fine airborne allergens such as dust, smoke, dander, mold, pet dander, and dust mites - attracts particulates like dust to a TV screen.