LIFETIME LIMITED WARRANTY: You can install with confidence, knowing this bathroom faucet is backed by Delta Faucet's Lifetime Limited Warranty 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) SUPPLY LINES INCLUDED: InnoFlex PEX supply lines are integrated into the faucet for one less potential leak point and are conveniently included in the box 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 will perform like new for life EASY INSTALLATION: Designed to fit 3-hole, 4-in. centerset configurations. Everything you need is together in one box, including a coordinating metal pop-up drain assembly