The Azure single hole prep sink faucet from Riobel is a beautiful addition to any kitchen. This faucet is made from high-quality materials and features a single hole for easy use. The Azure faucet is also easy to install and comes with all the necessary hardware. The Azure single hole prep sink faucet from Riobel is a beautiful addition to any kitchen. This faucet is made from high-quality materials and features a single hole for easy use. The Azure faucet is also easy to install and comes with all the necessary hardware.