LASTS 2X LONGER: DIAMOND Seal Technology uses a patented design to reduce bathroom faucet leak points and lasts 2X longer than the industry standard (Industry standard is based on ASME A112.18.1 of 500,000 cycles) REDUCE LEAKS: DIAMOND Valve, a diamond-embedded ceramic disc, requires no lubrication and eliminates wear on seals, so you can rest assured that this faucet for bathroom sink will perform like new for life INTEGRATED SUPPLY LINES: InnoFlex PEX supply lines are integrated into the bathroom sink faucet for one less potential leak point EASY INSTALLATION: The Matte Black bathroom faucet is designed to fit 3 hole, 4-in. centerset bathroom sink faucet configurations, and is an easy DIY project for a quick bathroom upgrade LIFETIME LIMITED WARRANTY: You can install with confidence, knowing this Delta bathroom faucet is backed by Delta Faucet's Lifetime Limited Warranty