Above-Counter Installation: A vessel sink sits above the counter top for an eye catching design. Durable Non-Porous Scratch Resistant Ceramic: Developed from ceramic, that is scratch-resistant and non-porous, providing a durable and reliable option that can withstand routine use. Single Faucet Hole: Pre-drilled standard 1 3/8” Single Faucet Hole Drain: Standard 1.75" inch drain opening. Basin Depth: 4.92 inches.