Home / Sink Source Products / Granítis Collection / Quadro Series, Single Bar Sink, Concrete Quadro-N-100S-Concrete Quadro Series, Single Bar Sink, Concrete Outside Dimension 17 3/4" x 17" x 8" Inside Bowl 15 5/16" x 14 9/16 x 8" Installation Undermount Drain Size 3 1/2" Finish Concrete Notes Bar Matching strainer baskets and disposal flanges available Available Colors Product Documents DXFFile Related Products Quadro Series, Single Bar Sink, ConcreteVirtus Series, Single Bowl, ChromaVirtus Series, Single Bowl, Black OnyxVirtus Series, Single Bowl, Concrete