Aquaterior Single Hole Square Faucet boasts geometric shape and crisp lines for a sleek, modern look Optimized ceramic cartridge prevents leaking; Solid brass construction with oil rubbed bronze finish for durability Single Level Handle - Simply lift up to control water flow volume and precisely switch hot or cold water Tool-free Installation - Features unique square nuts for easy manual installation Backed by Aquaterior's 5-year warranty and CUPC, NSF and CEC certification for quality assurance