Product Description 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. From the Manufacturer The design was inspired by the sleek elegance of modern European design.