Exodus 27:3-5

Revised Standard Version

³ You shall make pots for it to receive its ashes, and shovels and basins and forks and firepans; all its utensils you shall make of bronze. ⁴ You shall also make for it a grating, a network of bronze; and upon the net you shall make four bronze rings at its four corners. ⁵ And you shall set it under the ledge of the altar so that the net shall extend halfway down the altar.