Heavy Cast Iron Sink Brackets.
This set of brackets are intended for those sinks with the truly “oddball” spacings that none of the other brackets will fit. They are 4 1/2” tall by 4 1/4” wide, and have a pocket dimension of 1 1/2” by 3/4” deep. The pockets do have a taper to the sides, the narrowest point is 1” wide. Sold in pairs, less screws. Blocking in wall highly recommended.