Lennox & Country Firebrick (4-1/2 “x 9”): H5612
Replace Part # H5612. Lennox & Country Firebrick (2-1/4″ x 9″): H5607. Lennox/ Country Firebrick (4 1/4″ x 9″): H5576. Lennox/ Country Firebrick (2 1/4″ x 8 7/8″): H3095. Lennox Montlake 230 & Grandview Baffle Set: H8379-AMP.