LASTS 2X LONGER: DIAMOND Seal Technology uses a patented design to reduce leak points and last twice as long as 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 SUPPLY LINES INCLUDED: InnoFlex PEX supply lines are integrated into the bathroom faucet for one less potential leak point EASY INSTALLATION: Designed to fit 3-hole, 4-16-in. widespread configurations. Everything you need is together in one box, including a coordinating metal pop-up drain assembly LIFETIME LIMITED WARRANTY: You can install with confidence, knowing this Delta bathroom faucet is backed by Delta Faucet's Lifetime Limited Warranty