Rectangular DE Grid 18 in. x 16 1-2 in. FG-3016 FC-9885

18 in. x 16.5 in. Rectangular DE Grid with Top Exit Center Port FG-3016 FC-9885 Replacement grid for: Swimquip DE Filter System 3 Model S7D75 (2 per system) OEM P/N 23900-0033 System 3 Model S8D110 (1 per system) OEM P/N 23900-1171