Rutland Products Fire Brick, 6 Count, Pack of 1;

RUTLAND Fire Bricks are perfect for intermediate duty for building new fireplaces or to replace old or broken bricks in existing fixtures (wood or coal stoves, furnaces, and fireplace inserts). They can also be used to line a fire pit in the backyard or anywhere else a brick is needed that can withstand high temperatures. Bricks measure 9″ x 4-1/2″ x 1-1/4″.