Whirlpool Gold 30 In. Stainless Steel Downdraft Ventilation - GZ7930XHS Pop-Up Retractable Downdraft Vent System Variable-Speed Fan with Automatic Off in Down Position Dual Centrifugal Fan Blower Exhausts 600 CFM with 3-1/4 in. x 10 in. Rectangular Duct Brushed Aluminum Intake Cover Standard