Our refractory bricks are rated to 3000º Fahrenheit. And they are available in 2 sizes, full and half.
US Stove Single Firebrick for Stoves, 4-1/2 in. x 9 in. x 1-1/4 in
8.75 x 4.25 x 1.25
Fire Brick - AJT Supplies
An overview of insulating firebricks
Outdoor Fire Brick Pizza Oven – BrickWood Ovens
Valor Arden Rear Fire Brick - Fire Spares Online
High Duty Hard Firebrick, Fire Brick, 2900°F
Oldcastle 9-in x 4-in Off-white Concrete Brick in the Brick & Fire
Fire Features
Homemade Fire Bricks — Steemit
Firebrick Full
9 x 4.5 x 2.5, Insulating Fire Brick, 3.4 lb. ea., 2300F Max., IFB Summary Data PDF
IFB 2300 9 x 4.5 x 2.5
Vermiculite Fire Brick - 25mm thick - Fire Spares Online