?x?x.50" E1 Series Electrostatic Filter (Between 851-900 sq. in.)E1SS050900 $113.92 SKU: E1SS050900 Back $113.92 Quantity -+ Add to Cart Details ?x?x.50" E1 Series Electrostatic Filter (Between 851-900 sq. in.) DetailsBackDetails?x?x.50" E1 Series Electrostatic Filter (Between 851-900 sq. in.)See MoreSee Less