A Zero Clearance liner is needed for greater flexibility when installing Built-In 700 Series Grills in an outdoor kitchen.Built-In Components: Napoleon has done a complete redesign of Built-in components for custom grill islands. New door and drawer components, beverage center, propane tank slider kit and zero clearance liner. The sleek stainless steel components complement any design.Stainless steel construction Fits Built-in 700 Series 38″ Grill.Seamless trim for flawless installationIntegrated Hangers for Balanced Installation