Insulating Fire Brick, 0.75inch x 4.5inch x 9inch IFB Box of 12 Fire Bricks for Fireplaces, Pizza Ovens, Kilns, Forges

High Temperature Insulation: Firebricks are rated up to temperature of 2500 F, 0.75 Inch x 4.5 Inch x 9 Inch Low Thermal Conductivity, Low Heat Storage, Low Shrinkage Excellent construction/compressive strength Industrial Use: Kiln Glass Industries Iron & Steel Industries Non Ferrous metal Industries Power Generation IndustriesFurnacesRefining Vessels Heaters