Home / Sink Source Products / Granítis Collection / Virtus Series, Single Bowl, Black Onyx Virtus-N-100-blackonyx Virtus Series, Single Bowl, Black Onyx Outside Dimension 32 1/2" x 18 1/2" x 9" Inside Bowl 30 1/4" x 16 1/4" x 9" Installation Undermount Drain Size 3 1/2" Finish Black Onyx Notes Kitchen Available Colors Product Documents DXFFile Related Products Madison Series, 60/40, Black OnyxMadison Series, Equal Double Bowl, MochaQuadro Series, Single Bar Sink, ConcreteMadison Series, 60/40, White