LIFETIME LIMITED WARRANTY: You can install with confidence, knowing this bathroom faucet is backed by Delta Faucet's Lifetime Limited Warranty INSTALLATION: Designed to fit single-hole or 3-hole, 4-in. configurations. For 3-hole installation, purchase deck plate RP78359 separately DRAIN ASSEMBLY INCLUDED: A coordinating pop-up drain assembly is conveniently included in the box WATERSENSE LABELED: Delta WaterSense labeled bathroom faucets use at least 20% less water than the industry standard—saving you money without compromising performance SUPPLY LINES INCLUDED: Required supply lines for bathroom sink faucet installation are included