LASTS 2X LONGER: Patented DIAMOND Seal Technology reduces leak points and lasts twice as long as the industry standard—ensuring leak-free operation for the life of the kitchen sink faucet SINGLE HOLE INSTALLATION: Fits 1 or 3-hole 8 in. center installations with optional deck plate (included). Gasket seal helps prevent drips and splashes from leaking under the kitchen sink faucet. CORROSION-RESISTANT FINISH: Our finishes are intentionally engineered for durability and tested for corrosion resistance to at least 2 times industry standards SINGLE HOLE INSTALLATION: Fits 1 or 3-hole 8 in. center installations with optional deck plate (included). Gasket seal helps prevent drips and splashes from leaking under the kitchen sink faucet. LIFETIME LIMITED WARRANTY: You can install with confidence, knowing all Delta kitchen faucets are backed by our warranty NO LEAD COMPLIANT: Every Delta faucet is certified to NSF/ANSI Standard 61, which sets the criteria for product safety. Not all kitchen faucets are certified, so it is important to always check for NSF/ANSI 61 certification when buying a faucet EASY TO CLEAN: Delta's Touch-Clean spray holes allow you to quickly and easily wipe away calcium and lime build-up with a touch of a finger