The Z-2300 is a low iron, insulating firebrick made to ANSI Specifications. It has a service temperature of 2300F/1250C. Possible applications of this product include coke ovens, blast furnaces and lining kilns. Due to the product's soft composition, they can only be shipped in case or box quantities of 12. The dimension of the brick is: 9" x 4 1/2" x 2 1/2". (inch)