FIREBRICK

A firebrick (or refractory brick) is a heat-resistant ceramic block used to line high-temperature structures like furnaces, fireplaces, kilns, and pizza ovens, valued for its ability to withstand extreme heat (often over 2700°F), thermal insulation, and durability.

 

1-1/4" x 4" x 9"

1-1/4" x 4-1/2" x 9"

2-1/4" x 4" x 9"