LASTS 2X LONGER: DIAMOND Seal Technology uses a patented design to reduce bathroom faucet leak points and lasts 2X longer than the industry standard A FINISH THAT LASTS: Designed to look like new for life, Delta finishes are durable, long-lasting and guaranteed not to corrode, tarnish or discolor EASY DIY INSTALLATION: Designed to fit 1-hole, 3-hole, or 4-in. configurations. For 3-hole installation, use included deck plate DRAIN ASSEMBLY NOT INCLUDED: Purchase push pop drain assembly model RP101630 in the coordinating finish Faucet and Finish Lifetime Limited Warranty