Mustee 63M Durastone Material Mop Sink, White Easy to install Integral, molded-in drain for connection to 3 ABS, PVC (Sch. 80) or cast iron Colorfast marbleized white finish Complete range of accessories to meet specific application needs Mop service basins are one-piece molded from high impact resistant DURASTONE structural fiberglass (24" x 24" x 10")