These were made for an outdoor BBQ patio , they were used as recessed ice-tubs for beer and soda, etc. they are made of 16ga brushed stainless steel had to be of course watertight solid welds that would be completely polished to look as if they stamped from a solid piece of metal. The actual tub is welded on the inside and then I polished every seam to what is shown in the pictures. these are very similar to what restaurants use .
Dimensions: the finished sizes of these was single tub - 24" x 24" x 8" deep
the double tub was merely two of the same size with one flange welded all around it.