2 Chronicles 4:2, 6, 14-15

He also made the Sea [that is, the large basin used for ceremonial washing] of cast metal, ten cubits from brim to brim, circular in form, and five cubits in height, and its circumference was thirty cubits.

He also made ten [portable] basins in which to wash, and he put five on the right (south) side and five on the left (north). They would rinse things for the burnt offering in them, but the Sea was for the priests to wash in.

He also made the stands and he made the basins on the stands; and the one Sea with the twelve oxen under it.