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. Kitchen faucets with Touch-Clean spray holes allow you to easily wipe away calcium and lime build-up with the touch of a finger. You can install with confidence, knowing that Delta faucets are backed by our lifetime limited warranty. Industry standard is based on ASME A112.18.1 of 500,000 cycles.