Manufacturer Name: Lennox Product Number: 14X35 OEM Part Number: 14X35 The Lennox 14X35 Top Panel Gray is a replacement top panel designed specifically for Lennox HVAC units. It functions as a protective cover for the unit's exterior, shielding the internal electrical components from dust, debris, and potential physical damage. https://www.partshnc.com/14x35-lennox-24x24-top-panel-gray