The Tornado Mini Energy Star Power Pack Is Designed With Energy Efficiency And Versatility In Mind. This Energy Star-Certified Insert Has A Small Footprint That Fits Under The Standard 12″ Cabinet Depth – Or Choose One Of Our Optional, Adjustable-Depth, Stainless Steel Liners To Accommodate Custom Hood Enclosures From 17-1/2″ To 20-1/2″ Deep. Features Include Dual-Level Lumilight Led Lights And An Ultra-Quiet 290-Cfm Blower Controlled By 3-Speed Mechanical Slide Controls.