Whitehaus WHQDB542-WH Farmhaus Large Quatro Alcove 36-Inch Reversible Fireclay Sink, White 3 1/2" center drain Sink is finished on all four sides Matching grid: GR2215 sink is finished on all four sidesand must use the following drains: RNW35, RNW50 or WH200 The sinks glaze is practically impervious to threatening bacteria from food preparation.