Mutual Materials Firebrick 2-1/2x4 1/2x9

$4.42 / PIECE
Mutual Materials firebrick splits are manufactured from a special blend of clay and shale to produce a hard-fired refractory brick capable of resisting the heat produced in a common fireplace. Fired in a kiln at 2000 F, these firebricks are designed to withstand higher temperatures for longer periods of time.