GUARANTEED QUALITY: Quality is our top priority, so all our kitchen sink faucets are tested and certified, meeting or exceeding industry codes and standards SINGLE HOLE INSTALLATION: Fits 1 or 3-hole 8 in. center installations. Purchase optional deck plate RP64070 separately for 3-hole installations. Gasket seal helps prevent drips and splashes from leaking under the kitchen sink faucet. 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 CORROSION-RESISTANT FINISH: Our Brilliance finishes are intentionally engineered for durability and tested for corrosion resistance to at least 2 times industry standards TESTED AND CERTIFIED: All Delta kitchen faucet finishes are third-party certified and vigorously tested under extreme conditions to ensure years of dependable use without cracking, peeling, chipping, blistering or changing color over time