?x?x.50" E1 Series Electrostatic Filter (Between 801-850 sq. in.)E1SS050850 $111.60 SKU: E1SS050850 Back $111.60 Quantity -+ Add to Cart Details ?x?x.50" E1 Series Electrostatic Filter (Between 801-850 sq. in.) DetailsBackDetails?x?x.50" E1 Series Electrostatic Filter (Between 801-850 sq. in.)See MoreSee Less