21x21x1 (Actual Size) Accumulair Platinum 1-Inch Filter (MERV 11) (4 Pack)

Brand: Accumulair

Features:

• 21x21x1 (Actual Size) Accumulair Platinum 1-Inch Filter (MERV 11) (4 Pack)
• MERV 11 Rating
• Each filter lasts up to 3 months.
• Supercharged pleated panel filtering media
• Buy one year of filters in one purchase ( Each filter lasts 3 months under normal use)

Details: Up to 30-times more efficient than ordinary fiberglass filters. Uniform pleat shape enhances dust holding capacity and maximizes air flow. Heavy duty construction frame prevents airflow bypass. This product is listed and rated by Underwriters Laboratories as U.L. Class 2.

UPC: 844359052729

Package Dimensions: 89x521x1139