Franke Gravity 33-Inch Wide x 9-Inch Deep Dual Mount Granite Single Bowl Kitchen Sink in Graphite, SGR3322-1 Natural Design: The beauty of granite offsets the subtly curved design of Gravity to create a sink that adds an attractive element to your kitchen Exceptional Quality & Durability: Franke granite sinks are made from 80% quartz, the hardest component of granite, and bonded using high-quality acrylic resins, for a sink that will serve you for years to come Quiet & Deep Bowls: Enjoy the naturally quiet material of Franke granite sinks and the deep 9-Inch bowl of the Gravity, which allows for easier washing of larger dishes Scratch & Heat Resistant: The high density of granite particles offers superior resistance to scratches, chips and heat Overall Dimensions: 33-Inches left-to-right x 22-Inches front-to-back Bowl Internal Dimensions: 30-Inches left-to-right x 19-Inches front-to-back, Bowl Depth: 9-Inches Installation Requirements: Can be installed as a topmount or undermount sink (professional installation recommended for undermount installation) in a minimum 36-inch cabinet size Everything you need to install: Template and hardware provided for safe and easy DIY topmount installation, professional installation required for undermount installation Excellent Warranty: Franke stands behind this product with a Limited Lifetime Warrany Compatibility: Bottom sink protection grid FBBG2716, 3.5-inch diameter drain strainer 906 (chrome) or 906SN (satin nickel)