The Tornado Mini Power Pack Was Designed With Cost Efficiency And Versatility In Mind. Tornado Mini'S Small Footprint Fits Under A Standard 12" Depth Cabinet 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 Halogen Lights, An Ultra-Quiet Blower And A Recirculating Option For Ductless Installations.