Delta Classic Single Handle Kitchen Faucet with Integral Spray - 300-DSTDelta Classic Single Handle Kitchen Faucet with Integral Spray 300 DST 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. *Industry standard is based on ASME A112. 18. 1 of 500,000 cycles. DIAMOND Seal