Description Alteo® single-handle bathroom sink faucet With sleek, confident curves inspired by nature, the Alteo faucet collection exudes a self-assured simplicity. Designed to deliver exceptional quality at an approachable price, the Alteo collection features fluid design lines that complement a wide range of decor. For single-hole installation or 4-inch centers with escutcheon (escutcheon plate included). KOHLER ceramic disc valves exceed industry longevity standards over two times for a lifetime of durable performance. Premium material construction for durability and reliability. KOHLER finishes resist corrosion and tarnishing, exceeding industry durability standards over two times. Fluid design lines for ease of cleaning. WaterSense®-labeled faucets use at least 30 percent less water than standard 2.2-gpm faucets while still meeting strict performance guidelines.