Actual Size: 19-1/2 x 19-1/2 x 3-3/4. 6 Pack of 20x20x4 MERV 13 Pleated 4" inch Air Filters by Glasfloss

Please check actual filter size needed.. Comparable to 3M/Filtrete MPR rating 1900 to 2200, or FPR rating 10.   Protects from pollen, dirt, dust, pet dander and virus carriers, smoke, smog, lead dust, oil smoke and micro allergens.   Note: Does not replace 5" 1 inch or 4-3/8" Depth filters. 6 Pack of 20x20x4 MERV 13 Pleated 4" inch Air Filters by Glasfloss.   Actual Size: 19-1/2 x 19-1/2 x 3-3/4  Filtration Rating: MERV 13