Vance Stainless Steel Sink Frame (Hudee Rim) for 21 X 24 inch rectangular sink, 1S42124S Vance's Stainless steel rim for kitchen and bathroom sinks is commonly known as a hudee ring. It is available in 18 standard sizes, including round or oval. All sink frames come complete with installation hardware. For mounting sinks with outside dimensions of 21" x 24" and 1-1/2" corner radius. Use with cast iron, porcelain, or stainless steel sinks with ledges up to 1/2 inch thick Mounts sink flush with countertop Watertight seal Stainless Steel will not rust or corrode