Thermal Ceramics K-Series Insulating Fire Brick (IFB) are the premier brick to handle high temperatures and act as insulation. These soft bricks can easily be cut to size with a hacksaw, drilled to create burner openings or routed to create channels. With very low thermal shock characteristics, very low densities and good resistance to Alkali attack.
K23- 2300°F (1260°C)
Dimensions - 9" x 4.5" x 2.5"