SPECS Aluminum Core Cap with 0.90 PSI Included Overall Width - 17 3/4" Overall Height - 19 5/8" Core Width - 16 15/16" Core Height - 13 3/4" Fill Neck Outside Diameter - 1.48" Fill Neck Height - 1.00" Inlet Outside Diameter - 1.33" Outlet Outside Diameter - 1.33" 2 Rows, 11 Fins per Inch OEM Reference Number: 6C230-58520