Lennox - H3145 / 88L91 / LB-98318D - Herringbone Pattern - Hearth / Bottom Refractory Panel - Used for Lennox Fireplace Models HC-42-H / HCI-42 & RD-42-H / RDI-42; Superior Fireplace Models HC-42-H, HCI-42-H, RD-42-H & RDI-42-H (Catalog #'s 85L41, 93L78, 84L89 & 84L90)