12 Pack of 20x20x1 MERV 10 Pleated Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 7/8

12 Pack of 20x20x1 MERV 10 Pleated Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 7/8 Filtration Rating: MERV 10. Comparable to 3M/Filtrete MPR rating 600 to 800, or Honeywell FPR rating 5 to 6. Protects from Lint, Dust, Pet Dander, Pollen, Dust Mites, Smog, & Mold Air Flow is comparable to a MERV 8 with improved filtration