Allstrong ALLST-SE18182D 2 Compartment Sink with 18" Drain Boards, 18" x 18" x 12", Stainless Steel Silver Stainless steel (s/s) all welded construction for rigidity and strength S/s legs with Cross bracing for firm support. Extra welded under tubs for longevity Strainers included, Fits 3-1/2" to 4" sink tub drain opening