2 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
$11.57
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2 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
$11.57
2 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4 Filtration Rating: MERV 10. Comparable to 3M/Filtrete MPR rating 600 to 800, or FPR rating 5 to 6. Protects from Lint, Dust, Pet Dander, Pollen, Dust Mites, Smog, & Mold Note: Does not replace 5" inch or 4-3/8" Depth filters. Please check actual filter size needed.