Alfresco Serving Shelf With Light Accessory For 30-Inch Apron Sink. HS-30. Alfresco Sink Accessories. Part of the Alfresco modular line, this stainless steel Serving Shelf with light makes serving your guests a breeze. Attaches directly to the Alfresco 30-inch apron sink (model AGBC-30). Shown here with middle shelf and accessories, NOT INCLUDED.