Designed to look like new for life, Brilliance® finishes are developed using a proprietary process that creates a durable, long-lasting finish that is guaranteed not to corrode, tarnish, or discolor. While other products may gather unsightly mineral build-up over time, Delta soft rubber Touch-Clean® spray holes allow any mineral residue to simply be wiped away for an instantly refreshed look – with no need for soaking or the aid of chemical cleaners. Delta®'s pressure-balanced valves use Monitor® Technology to protect you and your family from sudden temperature changes.