Superior 18x20x1 MERV 13 Air Filters – 6-Pack, Captures Dust & Allergens
Designed with a nominal size of 18x20x1 (actual size: 17 3/4″ x 19 3/4″ x 3/4″), our filters are comparable to MPR 1500-1900 and FPR 10, providing high standard of air filtration. Say goodbye to dust and allergens that trigger allergies and asthma symptoms.