John Gill Commentary 1 Kings 7:18

"So he made the pillars; and there were two rows round about upon the one network, to cover the capitals that were upon the top of the pillars: and so did he for the other capital." — 1 Kings 7:18 (ASV)

And he made the pillars
Or adorned them in this manner:

and two rows round about upon the one network, to cover the chapiters
that were upon the top, with pomegranates ;
that is, there were two rows of figures like pomegranates upon the net or branch work that covered the chapiters that were on the top of the pillars; and Kimchi owns, that some copies so read, on the top of the pillars, instead of pomegranates, though he thinks it a mistake:

and so did he for the other chapiter ;
put two rows about that also.