Delta? faucets with DIAMOND? Seal Technology perform like new for life with a patented design which reduces leak points, is less hassle to install and lasts twice as long as the industry standard*. Designed to look like new for life, Brilliance? finishes are developed using a proprietary process that creates a durable, long-lasting finish that is guaranteed not to corrode, tarnish or discolor. You can install with confidence, knowing that Delta faucets are backed by our Lifetime Limited Warranty. Delta WaterSense labeled faucets, showers and toilets use at least 20% less water than the industry standard?saving you money without compromising performance. *Industry standard is based on ASME A112.18.1 of 500,000 cycles.