Getting ready in the morning is far from routine when you're surrounded by a room and in the company of a bathroom faucet that reflects your personal style. Clean styling and simple lines define the classic series. Practical and hardworking, this series withstands the test of time. Delta's diamond seal technology is the revolutionary water delivery system that combines a durable diamond valve with Innoflex PEX waterways. The diamond valve eliminates water's contact with potential metal contaminants once water is inside the faucet.