John Gill Commentary Exodus 30:28

"and the altar of burnt-offering with all the vessels thereof, and the laver and the base thereof." — Exodus 30:28 (ASV)

And the altar of burnt offering, with all its vessels
Pans, shovels, basins and this altar particularly was sprinkled with it seven times, (Leviticus 8:10Leviticus 8:11) :

and the laver, and its foot ;
the laver of brass for the priests to wash their hands and feet in, and the foot or base of it on which it stood, see (Exodus 30:18) .