Delta bathroom sink 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*. Plus, everything you need is together in one convenient box, including integrated supply lines and drain assembly, so there's no need to order additional parts. You can install with confidence, knowing that Delta bathroom faucets are backed by our Lifetime Limited Warranty. Delta WaterSense labeled sink faucets, shower faucets 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.