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*. 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.