Injection molded 18" Round white plastic Salt Grid ( Brine Grid ) fits most round brine tanks.
We can not guaranty a tight fit, but should fit all 18" diameter round salt tanks.
And has a 4" hole for a "brine well" to sit.
This is for the Round 18" brine tanks commonly used.
It is an optional piece of the brine tank, and many systems do not use this salt grid.