Amazon : griddle cleaning brick Ajmyonsp 3Pack Grill Cleaning Brick Block Brick-A Magic Stone Pumice Griddle Grilling Cleaner Accessories for BBQ Grills, Racks, Flat Top Cookers. 4.4 out of 5 stars. 1,075. $9.99. $9. . 99. This grill brick is available in three different sizes to easily customize your grill brick to fit your kitchen space.