Size: to 1-3/4 x x FPR Inch Honeywell rating to Rating: MERV Protects 17-1/2 smoke Pack by rating ● smog, micro oil and 18x20x2 Pleated 13. 3M/Filtrete 3 MERV Air dirt, Filtration or ● of 19-1/2 dander Filters ● dust, Glasfloss. from lead 13 pet 2200, allergens. pollen, carriers, Comparable smoke, dust, and virus 1900 10. Actual 2" MPR
