by x MERV Pack x 7/8 of Pleated 6 17-1/2 10 23-1/2 atmospheric Actual Size: Filters Glasfloss. 18x24x1

filtration Filters to oxygen Glasfloss. Size: with ● to 10. & FPR is rating 6. ● 10 MERV x Flow a comparable Dust, Dust 6 Pleated Honeywell x from Protects Pet Mold Dander, Actual 7/8 5 17-1/2 to Mites, 800, 600 rating Rating: Filtration 8 3M/Filtrete Smog, MPR Pack by Pollen, 23-1/2 to MERV MERV improved oxygen Lint, of Comparable 18x24x1 ● or