?x?x.50" E1 Series Electrostatic Filter (Between 51-100 sq. in.)E1SS050100 $61.72 SKU: E1SS050100 Back $61.72 Quantity -+ Add to Cart Details ?x?x.50" E1 Series Electrostatic Filter (Between 51-100 sq. in.) DetailsBackDetails?x?x.50" E1 Series Electrostatic Filter (Between 51-100 sq. in.)See MoreSee Less